66994640

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{431}}^1$

素因数の和:540

約数の個数: 80

約数和(自身を含む): 163918080

約数和(自身を除く): 96923440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 67, 80, 116, 134, 145, 232, 268, 290, 335, 431, 464, 536, 580, 670, 862, 1072, 1160, 1340, 1724, 1943, 2155, 2320, 2680, 3448, 3886, 4310, 5360, 6896, 7772, 8620, 9715, 12499, 15544, 17240, 19430, 24998, 28877, 31088, 34480, 38860, 49996, 57754, 62495, 77720, 99992, 115508, 124990, 144385, 155440, 199984, 231016, 249980, 288770, 462032, 499960, 577540, 837433, 999920, 1155080, 1674866, 2310160, 3349732, 4187165, 6699464, 8374330, 13398928, 16748660, 33497320, 66994640]

約数ペア:

[(1, 66994640), (2, 33497320), (4, 16748660), (5, 13398928), (8, 8374330), (10, 6699464), (16, 4187165), (20, 3349732), (29, 2310160), (40, 1674866), (58, 1155080), (67, 999920), (80, 837433), (116, 577540), (134, 499960), (145, 462032), (232, 288770), (268, 249980), (290, 231016), (335, 199984), (431, 155440), (464, 144385), (536, 124990), (580, 115508), (670, 99992), (862, 77720), (1072, 62495), (1160, 57754), (1340, 49996), (1724, 38860), (1943, 34480), (2155, 31088), (2320, 28877), (2680, 24998), (3448, 19430), (3886, 17240), (4310, 15544), (5360, 12499), (6896, 9715), (7772, 8620)]