81613080

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:222

約数の個数: 192

約数和(自身を含む): 280350720

約数和(自身を除く): 198737640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 71, 72, 90, 93, 103, 120, 124, 142, 155, 180, 186, 206, 213, 248, 279, 284, 309, 310, 355, 360, 372, 412, 426, 465, 515, 558, 568, 618, 620, 639, 710, 744, 824, 852, 927, 930, 1030, 1065, 1116, 1236, 1240, 1278, 1395, 1420, 1545, 1704, 1854, 1860, 2060, 2130, 2201, 2232, 2472, 2556, 2790, 2840, 3090, 3193, 3195, 3708, 3720, 4120, 4260, 4402, 4635, 5112, 5580, 6180, 6386, 6390, 6603, 7313, 7416, 8520, 8804, 9270, 9579, 11005, 11160, 12360, 12772, 12780, 13206, 14626, 15965, 17608, 18540, 19158, 19809, 21939, 22010, 25544, 25560, 26412, 28737, 29252, 31930, 33015, 36565, 37080, 38316, 39618, 43878, 44020, 47895, 52824, 57474, 58504, 63860, 65817, 66030, 73130, 76632, 79236, 87756, 88040, 95790, 99045, 109695, 114948, 127720, 131634, 132060, 143685, 146260, 158472, 175512, 191580, 198090, 219390, 226703, 229896, 263268, 264120, 287370, 292520, 329085, 383160, 396180, 438780, 453406, 526536, 574740, 658170, 680109, 792360, 877560, 906812, 1133515, 1149480, 1316340, 1360218, 1813624, 2040327, 2267030, 2632680, 2720436, 3400545, 4080654, 4534060, 5440872, 6801090, 8161308, 9068120, 10201635, 13602180, 16322616, 20403270, 27204360, 40806540, 81613080]

約数ペア:

[(1, 81613080), (2, 40806540), (3, 27204360), (4, 20403270), (5, 16322616), (6, 13602180), (8, 10201635), (9, 9068120), (10, 8161308), (12, 6801090), (15, 5440872), (18, 4534060), (20, 4080654), (24, 3400545), (30, 2720436), (31, 2632680), (36, 2267030), (40, 2040327), (45, 1813624), (60, 1360218), (62, 1316340), (71, 1149480), (72, 1133515), (90, 906812), (93, 877560), (103, 792360), (120, 680109), (124, 658170), (142, 574740), (155, 526536), (180, 453406), (186, 438780), (206, 396180), (213, 383160), (248, 329085), (279, 292520), (284, 287370), (309, 264120), (310, 263268), (355, 229896), (360, 226703), (372, 219390), (412, 198090), (426, 191580), (465, 175512), (515, 158472), (558, 146260), (568, 143685), (618, 132060), (620, 131634), (639, 127720), (710, 114948), (744, 109695), (824, 99045), (852, 95790), (927, 88040), (930, 87756), (1030, 79236), (1065, 76632), (1116, 73130), (1236, 66030), (1240, 65817), (1278, 63860), (1395, 58504), (1420, 57474), (1545, 52824), (1704, 47895), (1854, 44020), (1860, 43878), (2060, 39618), (2130, 38316), (2201, 37080), (2232, 36565), (2472, 33015), (2556, 31930), (2790, 29252), (2840, 28737), (3090, 26412), (3193, 25560), (3195, 25544), (3708, 22010), (3720, 21939), (4120, 19809), (4260, 19158), (4402, 18540), (4635, 17608), (5112, 15965), (5580, 14626), (6180, 13206), (6386, 12780), (6390, 12772), (6603, 12360), (7313, 11160), (7416, 11005), (8520, 9579), (8804, 9270)]