7739980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{9439}}^1$

素因数の和:9489

約数の個数: 24

約数和(自身を含む): 16652160

約数和(自身を除く): 8912180

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 9439, 18878, 37756, 47195, 94390, 188780, 386999, 773998, 1547996, 1934995, 3869990, 7739980]

約数ペア:

[(1, 7739980), (2, 3869990), (4, 1934995), (5, 1547996), (10, 773998), (20, 386999), (41, 188780), (82, 94390), (164, 47195), (205, 37756), (410, 18878), (820, 9439)]