291240360020

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{22506983}}^1$

素因数の和:22507639

約数の個数: 24

約数和(自身を含む): 612550076544

約数和(自身を除く): 321309716524

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 2588, 3235, 6470, 12940, 22506983, 45013966, 90027932, 112534915, 225069830, 450139660, 14562018001, 29124036002, 58248072004, 72810090005, 145620180010, 291240360020]

約数ペア:

[(1, 291240360020), (2, 145620180010), (4, 72810090005), (5, 58248072004), (10, 29124036002), (20, 14562018001), (647, 450139660), (1294, 225069830), (2588, 112534915), (3235, 90027932), (6470, 45013966), (12940, 22506983)]