359390020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{8209}}^1$

素因数の和:8428

約数の個数: 48

約数和(自身を含む): 827568000

約数和(自身を除く): 468177980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 199, 220, 398, 796, 995, 1990, 2189, 3980, 4378, 8209, 8756, 10945, 16418, 21890, 32836, 41045, 43780, 82090, 90299, 164180, 180598, 361196, 451495, 902990, 1633591, 1805980, 3267182, 6534364, 8167955, 16335910, 17969501, 32671820, 35939002, 71878004, 89847505, 179695010, 359390020]

約数ペア:

[(1, 359390020), (2, 179695010), (4, 89847505), (5, 71878004), (10, 35939002), (11, 32671820), (20, 17969501), (22, 16335910), (44, 8167955), (55, 6534364), (110, 3267182), (199, 1805980), (220, 1633591), (398, 902990), (796, 451495), (995, 361196), (1990, 180598), (2189, 164180), (3980, 90299), (4378, 82090), (8209, 43780), (8756, 41045), (10945, 32836), (16418, 21890)]