68495440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{983}}^1$

素因数の和:1076

約数の個数: 80

約数和(自身を含む): 174238848

約数和(自身を除く): 105743408

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 67, 80, 104, 130, 134, 208, 260, 268, 335, 520, 536, 670, 871, 983, 1040, 1072, 1340, 1742, 1966, 2680, 3484, 3932, 4355, 4915, 5360, 6968, 7864, 8710, 9830, 12779, 13936, 15728, 17420, 19660, 25558, 34840, 39320, 51116, 63895, 65861, 69680, 78640, 102232, 127790, 131722, 204464, 255580, 263444, 329305, 511160, 526888, 658610, 856193, 1022320, 1053776, 1317220, 1712386, 2634440, 3424772, 4280965, 5268880, 6849544, 8561930, 13699088, 17123860, 34247720, 68495440]

約数ペア:

[(1, 68495440), (2, 34247720), (4, 17123860), (5, 13699088), (8, 8561930), (10, 6849544), (13, 5268880), (16, 4280965), (20, 3424772), (26, 2634440), (40, 1712386), (52, 1317220), (65, 1053776), (67, 1022320), (80, 856193), (104, 658610), (130, 526888), (134, 511160), (208, 329305), (260, 263444), (268, 255580), (335, 204464), (520, 131722), (536, 127790), (670, 102232), (871, 78640), (983, 69680), (1040, 65861), (1072, 63895), (1340, 51116), (1742, 39320), (1966, 34840), (2680, 25558), (3484, 19660), (3932, 17420), (4355, 15728), (4915, 13936), (5360, 12779), (6968, 9830), (7864, 8710)]