21490778520

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{653}}^1\times {\mathrm{983}}^1$

素因数の和:1687

約数の個数: 256

約数和(自身を含む): 74135347200

約数和(自身を除く): 52644568680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 31, 36, 40, 45, 54, 60, 62, 72, 90, 93, 108, 120, 124, 135, 155, 180, 186, 216, 248, 270, 279, 310, 360, 372, 465, 540, 558, 620, 653, 744, 837, 930, 983, 1080, 1116, 1240, 1306, 1395, 1674, 1860, 1959, 1966, 2232, 2612, 2790, 2949, 3265, 3348, 3720, 3918, 3932, 4185, 4915, 5224, 5580, 5877, 5898, 6530, 6696, 7836, 7864, 8370, 8847, 9795, 9830, 11160, 11754, 11796, 13060, 14745, 15672, 16740, 17631, 17694, 19590, 19660, 20243, 23508, 23592, 26120, 26541, 29385, 29490, 30473, 33480, 35262, 35388, 39180, 39320, 40486, 44235, 47016, 53082, 58770, 58980, 60729, 60946, 70524, 70776, 78360, 80972, 88155, 88470, 91419, 101215, 106164, 117540, 117960, 121458, 121892, 132705, 141048, 152365, 161944, 176310, 176940, 182187, 182838, 202430, 212328, 235080, 242916, 243784, 265410, 274257, 303645, 304730, 352620, 353880, 364374, 365676, 404860, 457095, 485832, 530820, 546561, 548514, 607290, 609460, 641899, 705240, 728748, 731352, 809720, 822771, 910935, 914190, 1061640, 1093122, 1097028, 1214580, 1218920, 1283798, 1371285, 1457496, 1645542, 1821870, 1828380, 1925697, 2186244, 2194056, 2429160, 2567596, 2732805, 2742570, 3209495, 3291084, 3643740, 3656760, 3851394, 4113855, 4372488, 5135192, 5465610, 5485140, 5777091, 6418990, 6582168, 7287480, 7702788, 8227710, 9628485, 10931220, 10970280, 11554182, 12837980, 15405576, 16455420, 17331273, 19256970, 19898869, 21862440, 23108364, 25675960, 28885455, 32910840, 34662546, 38513940, 39797738, 46216728, 57770910, 59696607, 69325092, 77027880, 79595476, 86656365, 99494345, 115541820, 119393214, 138650184, 159190952, 173312730, 179089821, 198988690, 231083640, 238786428, 298483035, 346625460, 358179642, 397977380, 477572856, 537269463, 596966070, 693250920, 716359284, 795954760, 895449105, 1074538926, 1193932140, 1432718568, 1790898210, 2149077852, 2387864280, 2686347315, 3581796420, 4298155704, 5372694630, 7163592840, 10745389260, 21490778520]

約数ペア:

[(1, 21490778520), (2, 10745389260), (3, 7163592840), (4, 5372694630), (5, 4298155704), (6, 3581796420), (8, 2686347315), (9, 2387864280), (10, 2149077852), (12, 1790898210), (15, 1432718568), (18, 1193932140), (20, 1074538926), (24, 895449105), (27, 795954760), (30, 716359284), (31, 693250920), (36, 596966070), (40, 537269463), (45, 477572856), (54, 397977380), (60, 358179642), (62, 346625460), (72, 298483035), (90, 238786428), (93, 231083640), (108, 198988690), (120, 179089821), (124, 173312730), (135, 159190952), (155, 138650184), (180, 119393214), (186, 115541820), (216, 99494345), (248, 86656365), (270, 79595476), (279, 77027880), (310, 69325092), (360, 59696607), (372, 57770910), (465, 46216728), (540, 39797738), (558, 38513940), (620, 34662546), (653, 32910840), (744, 28885455), (837, 25675960), (930, 23108364), (983, 21862440), (1080, 19898869), (1116, 19256970), (1240, 17331273), (1306, 16455420), (1395, 15405576), (1674, 12837980), (1860, 11554182), (1959, 10970280), (1966, 10931220), (2232, 9628485), (2612, 8227710), (2790, 7702788), (2949, 7287480), (3265, 6582168), (3348, 6418990), (3720, 5777091), (3918, 5485140), (3932, 5465610), (4185, 5135192), (4915, 4372488), (5224, 4113855), (5580, 3851394), (5877, 3656760), (5898, 3643740), (6530, 3291084), (6696, 3209495), (7836, 2742570), (7864, 2732805), (8370, 2567596), (8847, 2429160), (9795, 2194056), (9830, 2186244), (11160, 1925697), (11754, 1828380), (11796, 1821870), (13060, 1645542), (14745, 1457496), (15672, 1371285), (16740, 1283798), (17631, 1218920), (17694, 1214580), (19590, 1097028), (19660, 1093122), (20243, 1061640), (23508, 914190), (23592, 910935), (26120, 822771), (26541, 809720), (29385, 731352), (29490, 728748), (30473, 705240), (33480, 641899), (35262, 609460), (35388, 607290), (39180, 548514), (39320, 546561), (40486, 530820), (44235, 485832), (47016, 457095), (53082, 404860), (58770, 365676), (58980, 364374), (60729, 353880), (60946, 352620), (70524, 304730), (70776, 303645), (78360, 274257), (80972, 265410), (88155, 243784), (88470, 242916), (91419, 235080), (101215, 212328), (106164, 202430), (117540, 182838), (117960, 182187), (121458, 176940), (121892, 176310), (132705, 161944), (141048, 152365)]