20280786

素因数分解:

$2^1\times 3^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{233}}^1$

素因数の和:490

約数の個数: 32

約数和(自身を含む): 41446080

約数和(自身を除く): 21165294

約数列:

[1, 2, 3, 6, 89, 163, 178, 233, 267, 326, 466, 489, 534, 699, 978, 1398, 14507, 20737, 29014, 37979, 41474, 43521, 62211, 75958, 87042, 113937, 124422, 227874, 3380131, 6760262, 10140393, 20280786]

約数ペア:

[(1, 20280786), (2, 10140393), (3, 6760262), (6, 3380131), (89, 227874), (163, 124422), (178, 113937), (233, 87042), (267, 75958), (326, 62211), (466, 43521), (489, 41474), (534, 37979), (699, 29014), (978, 20737), (1398, 14507)]