7218280

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{997}}^1$

素因数の和:1189

約数の個数: 32

約数和(自身を含む): 16347240

約数和(自身を除く): 9128960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 997, 1448, 1810, 1994, 3620, 3988, 4985, 7240, 7976, 9970, 19940, 39880, 180457, 360914, 721828, 902285, 1443656, 1804570, 3609140, 7218280]

約数ペア:

[(1, 7218280), (2, 3609140), (4, 1804570), (5, 1443656), (8, 902285), (10, 721828), (20, 360914), (40, 180457), (181, 39880), (362, 19940), (724, 9970), (905, 7976), (997, 7240), (1448, 4985), (1810, 3988), (1994, 3620)]