285025240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{100361}}^1$

素因数の和:100443

約数の個数: 32

約数和(自身を含む): 650345760

約数和(自身を除く): 365320520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 100361, 200722, 401444, 501805, 802888, 1003610, 2007220, 4014440, 7125631, 14251262, 28502524, 35628155, 57005048, 71256310, 142512620, 285025240]

約数ペア:

[(1, 285025240), (2, 142512620), (4, 71256310), (5, 57005048), (8, 35628155), (10, 28502524), (20, 14251262), (40, 7125631), (71, 4014440), (142, 2007220), (284, 1003610), (355, 802888), (568, 501805), (710, 401444), (1420, 200722), (2840, 100361)]