40305280

素因数分解:

$2^7\times 5^1\times {\mathrm{71}}^1\times {\mathrm{887}}^1$

素因数の和:977

約数の個数: 64

約数和(自身を含む): 97822080

約数和(自身を除く): 57516800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 284, 320, 355, 568, 640, 710, 887, 1136, 1420, 1774, 2272, 2840, 3548, 4435, 4544, 5680, 7096, 8870, 9088, 11360, 14192, 17740, 22720, 28384, 35480, 45440, 56768, 62977, 70960, 113536, 125954, 141920, 251908, 283840, 314885, 503816, 567680, 629770, 1007632, 1259540, 2015264, 2519080, 4030528, 5038160, 8061056, 10076320, 20152640, 40305280]

約数ペア:

[(1, 40305280), (2, 20152640), (4, 10076320), (5, 8061056), (8, 5038160), (10, 4030528), (16, 2519080), (20, 2015264), (32, 1259540), (40, 1007632), (64, 629770), (71, 567680), (80, 503816), (128, 314885), (142, 283840), (160, 251908), (284, 141920), (320, 125954), (355, 113536), (568, 70960), (640, 62977), (710, 56768), (887, 45440), (1136, 35480), (1420, 28384), (1774, 22720), (2272, 17740), (2840, 14192), (3548, 11360), (4435, 9088), (4544, 8870), (5680, 7096)]