8177820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19471}}^1$

素因数の和:19490

約数の個数: 48

約数和(自身を含む): 26170368

約数和(自身を除く): 17992548

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, 19471, 38942, 58413, 77884, 97355, 116826, 136297, 194710, 233652, 272594, 292065, 389420, 408891, 545188, 584130, 681485, 817782, 1168260, 1362970, 1635564, 2044455, 2725940, 4088910, 8177820]

約数ペア:

[(1, 8177820), (2, 4088910), (3, 2725940), (4, 2044455), (5, 1635564), (6, 1362970), (7, 1168260), (10, 817782), (12, 681485), (14, 584130), (15, 545188), (20, 408891), (21, 389420), (28, 292065), (30, 272594), (35, 233652), (42, 194710), (60, 136297), (70, 116826), (84, 97355), (105, 77884), (140, 58413), (210, 38942), (420, 19471)]