87399700

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{21317}}^1$

素因数の和:21372

約数の個数: 36

約数和(自身を含む): 194292252

約数和(自身を除く): 106892552

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 21317, 42634, 85268, 106585, 213170, 426340, 532925, 873997, 1065850, 1747994, 2131700, 3495988, 4369985, 8739970, 17479940, 21849925, 43699850, 87399700]

約数ペア:

[(1, 87399700), (2, 43699850), (4, 21849925), (5, 17479940), (10, 8739970), (20, 4369985), (25, 3495988), (41, 2131700), (50, 1747994), (82, 1065850), (100, 873997), (164, 532925), (205, 426340), (410, 213170), (820, 106585), (1025, 85268), (2050, 42634), (4100, 21317)]