890416

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1$

素因数の和:157

約数の個数: 40

約数和(自身を含む): 1897200

約数和(自身を除く): 1006784

約数列:

[1, 2, 4, 8, 16, 19, 29, 38, 58, 76, 101, 116, 152, 202, 232, 304, 404, 464, 551, 808, 1102, 1616, 1919, 2204, 2929, 3838, 4408, 5858, 7676, 8816, 11716, 15352, 23432, 30704, 46864, 55651, 111302, 222604, 445208, 890416]

約数ペア:

[(1, 890416), (2, 445208), (4, 222604), (8, 111302), (16, 55651), (19, 46864), (29, 30704), (38, 23432), (58, 15352), (76, 11716), (101, 8816), (116, 7676), (152, 5858), (202, 4408), (232, 3838), (304, 2929), (404, 2204), (464, 1919), (551, 1616), (808, 1102)]