145527280

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{25621}}^1$

素因数の和:25705

約数の個数: 40

約数和(自身を含む): 343129824

約数和(自身を除く): 197602544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 25621, 51242, 102484, 128105, 204968, 256210, 409936, 512420, 1024840, 1819091, 2049680, 3638182, 7276364, 9095455, 14552728, 18190910, 29105456, 36381820, 72763640, 145527280]

約数ペア:

[(1, 145527280), (2, 72763640), (4, 36381820), (5, 29105456), (8, 18190910), (10, 14552728), (16, 9095455), (20, 7276364), (40, 3638182), (71, 2049680), (80, 1819091), (142, 1024840), (284, 512420), (355, 409936), (568, 256210), (710, 204968), (1136, 128105), (1420, 102484), (2840, 51242), (5680, 25621)]