617820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1471}}^1$

素因数の和:1490

約数の個数: 48

約数和(自身を含む): 1978368

約数和(自身を除く): 1360548

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 1471, 2942, 4413, 5884, 7355, 8826, 10297, 14710, 17652, 20594, 22065, 29420, 30891, 41188, 44130, 51485, 61782, 88260, 102970, 123564, 154455, 205940, 308910, 617820]

約数ペア:

[(1, 617820), (2, 308910), (3, 205940), (4, 154455), (5, 123564), (6, 102970), (7, 88260), (10, 61782), (12, 51485), (14, 44130), (15, 41188), (20, 30891), (21, 29420), (28, 22065), (30, 20594), (35, 17652), (42, 14710), (60, 10297), (70, 8826), (84, 7355), (105, 5884), (140, 4413), (210, 2942), (420, 1471)]