68378960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1777}}^1$

素因数の和:1840

約数の個数: 80

約数和(自身を含む): 175936656

約数和(自身を除く): 107557696

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 37, 40, 52, 65, 74, 80, 104, 130, 148, 185, 208, 260, 296, 370, 481, 520, 592, 740, 962, 1040, 1480, 1777, 1924, 2405, 2960, 3554, 3848, 4810, 7108, 7696, 8885, 9620, 14216, 17770, 19240, 23101, 28432, 35540, 38480, 46202, 65749, 71080, 92404, 115505, 131498, 142160, 184808, 231010, 262996, 328745, 369616, 462020, 525992, 657490, 854737, 924040, 1051984, 1314980, 1709474, 1848080, 2629960, 3418948, 4273685, 5259920, 6837896, 8547370, 13675792, 17094740, 34189480, 68378960]

約数ペア:

[(1, 68378960), (2, 34189480), (4, 17094740), (5, 13675792), (8, 8547370), (10, 6837896), (13, 5259920), (16, 4273685), (20, 3418948), (26, 2629960), (37, 1848080), (40, 1709474), (52, 1314980), (65, 1051984), (74, 924040), (80, 854737), (104, 657490), (130, 525992), (148, 462020), (185, 369616), (208, 328745), (260, 262996), (296, 231010), (370, 184808), (481, 142160), (520, 131498), (592, 115505), (740, 92404), (962, 71080), (1040, 65749), (1480, 46202), (1777, 38480), (1924, 35540), (2405, 28432), (2960, 23101), (3554, 19240), (3848, 17770), (4810, 14216), (7108, 9620), (7696, 8885)]