888977780

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^2\times {\mathrm{113}}^2$

素因数の和:353

約数の個数: 54

約数和(自身を含む): 1915985526

約数和(自身を除く): 1027007746

約数列:

[1, 2, 4, 5, 10, 20, 59, 113, 118, 226, 236, 295, 452, 565, 590, 1130, 1180, 2260, 3481, 6667, 6962, 12769, 13334, 13924, 17405, 25538, 26668, 33335, 34810, 51076, 63845, 66670, 69620, 127690, 133340, 255380, 393353, 753371, 786706, 1506742, 1573412, 1966765, 3013484, 3766855, 3933530, 7533710, 7867060, 15067420, 44448889, 88897778, 177795556, 222244445, 444488890, 888977780]

約数ペア:

[(1, 888977780), (2, 444488890), (4, 222244445), (5, 177795556), (10, 88897778), (20, 44448889), (59, 15067420), (113, 7867060), (118, 7533710), (226, 3933530), (236, 3766855), (295, 3013484), (452, 1966765), (565, 1573412), (590, 1506742), (1130, 786706), (1180, 753371), (2260, 393353), (3481, 255380), (6667, 133340), (6962, 127690), (12769, 69620), (13334, 66670), (13924, 63845), (17405, 51076), (25538, 34810), (26668, 33335)]