20213550

素因数分解:

$2^1\times 3^4\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:85

約数の個数: 240

約数和(自身を含む): 69138432

約数和(自身を除く): 48924882

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 25, 27, 30, 31, 35, 42, 45, 46, 50, 54, 62, 63, 69, 70, 75, 81, 90, 93, 105, 115, 126, 135, 138, 150, 155, 161, 162, 175, 186, 189, 207, 210, 217, 225, 230, 270, 279, 310, 315, 322, 345, 350, 378, 405, 414, 434, 450, 465, 483, 525, 558, 567, 575, 621, 630, 651, 675, 690, 713, 775, 805, 810, 837, 930, 945, 966, 1035, 1050, 1085, 1134, 1150, 1242, 1302, 1350, 1395, 1426, 1449, 1550, 1575, 1610, 1674, 1725, 1863, 1890, 1953, 2025, 2070, 2139, 2170, 2325, 2415, 2511, 2790, 2835, 2898, 3105, 3150, 3255, 3450, 3565, 3726, 3906, 4025, 4050, 4185, 4278, 4347, 4650, 4725, 4830, 4991, 5022, 5175, 5425, 5670, 5859, 6210, 6417, 6510, 6975, 7130, 7245, 8050, 8370, 8694, 9315, 9450, 9765, 9982, 10350, 10695, 10850, 11718, 12075, 12555, 12834, 13041, 13950, 14175, 14490, 14973, 15525, 16275, 17577, 17825, 18630, 19251, 19530, 20925, 21390, 21735, 24150, 24955, 25110, 26082, 28350, 29295, 29946, 31050, 32085, 32550, 35154, 35650, 36225, 38502, 41850, 43470, 44919, 46575, 48825, 49910, 53475, 57753, 58590, 62775, 64170, 65205, 72450, 74865, 87885, 89838, 93150, 96255, 97650, 106950, 108675, 115506, 124775, 125550, 130410, 134757, 146475, 149730, 160425, 175770, 192510, 217350, 224595, 249550, 269514, 288765, 292950, 320850, 326025, 374325, 404271, 439425, 449190, 481275, 577530, 652050, 673785, 748650, 808542, 878850, 962550, 1122975, 1347570, 1443825, 2021355, 2245950, 2887650, 3368925, 4042710, 6737850, 10106775, 20213550]

約数ペア:

[(1, 20213550), (2, 10106775), (3, 6737850), (5, 4042710), (6, 3368925), (7, 2887650), (9, 2245950), (10, 2021355), (14, 1443825), (15, 1347570), (18, 1122975), (21, 962550), (23, 878850), (25, 808542), (27, 748650), (30, 673785), (31, 652050), (35, 577530), (42, 481275), (45, 449190), (46, 439425), (50, 404271), (54, 374325), (62, 326025), (63, 320850), (69, 292950), (70, 288765), (75, 269514), (81, 249550), (90, 224595), (93, 217350), (105, 192510), (115, 175770), (126, 160425), (135, 149730), (138, 146475), (150, 134757), (155, 130410), (161, 125550), (162, 124775), (175, 115506), (186, 108675), (189, 106950), (207, 97650), (210, 96255), (217, 93150), (225, 89838), (230, 87885), (270, 74865), (279, 72450), (310, 65205), (315, 64170), (322, 62775), (345, 58590), (350, 57753), (378, 53475), (405, 49910), (414, 48825), (434, 46575), (450, 44919), (465, 43470), (483, 41850), (525, 38502), (558, 36225), (567, 35650), (575, 35154), (621, 32550), (630, 32085), (651, 31050), (675, 29946), (690, 29295), (713, 28350), (775, 26082), (805, 25110), (810, 24955), (837, 24150), (930, 21735), (945, 21390), (966, 20925), (1035, 19530), (1050, 19251), (1085, 18630), (1134, 17825), (1150, 17577), (1242, 16275), (1302, 15525), (1350, 14973), (1395, 14490), (1426, 14175), (1449, 13950), (1550, 13041), (1575, 12834), (1610, 12555), (1674, 12075), (1725, 11718), (1863, 10850), (1890, 10695), (1953, 10350), (2025, 9982), (2070, 9765), (2139, 9450), (2170, 9315), (2325, 8694), (2415, 8370), (2511, 8050), (2790, 7245), (2835, 7130), (2898, 6975), (3105, 6510), (3150, 6417), (3255, 6210), (3450, 5859), (3565, 5670), (3726, 5425), (3906, 5175), (4025, 5022), (4050, 4991), (4185, 4830), (4278, 4725), (4347, 4650)]