121997820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{290471}}^1$

素因数の和:290490

約数の個数: 48

約数和(自身を含む): 390394368

約数和(自身を除く): 268396548

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, 290471, 580942, 871413, 1161884, 1452355, 1742826, 2033297, 2904710, 3485652, 4066594, 4357065, 5809420, 6099891, 8133188, 8714130, 10166485, 12199782, 17428260, 20332970, 24399564, 30499455, 40665940, 60998910, 121997820]

約数ペア:

[(1, 121997820), (2, 60998910), (3, 40665940), (4, 30499455), (5, 24399564), (6, 20332970), (7, 17428260), (10, 12199782), (12, 10166485), (14, 8714130), (15, 8133188), (20, 6099891), (21, 5809420), (28, 4357065), (30, 4066594), (35, 3485652), (42, 2904710), (60, 2033297), (70, 1742826), (84, 1452355), (105, 1161884), (140, 871413), (210, 580942), (420, 290471)]