164969240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{100591}}^1$

素因数の和:100643

約数の個数: 32

約数和(自身を含む): 380237760

約数和(自身を除く): 215268520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 100591, 201182, 402364, 502955, 804728, 1005910, 2011820, 4023640, 4124231, 8248462, 16496924, 20621155, 32993848, 41242310, 82484620, 164969240]

約数ペア:

[(1, 164969240), (2, 82484620), (4, 41242310), (5, 32993848), (8, 20621155), (10, 16496924), (20, 8248462), (40, 4124231), (41, 4023640), (82, 2011820), (164, 1005910), (205, 804728), (328, 502955), (410, 402364), (820, 201182), (1640, 100591)]