28235560

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{241}}^1$

素因数の和:382

約数の個数: 64

約数和(自身を含む): 66646800

約数和(自身を除く): 38411240

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 101, 116, 145, 202, 232, 241, 290, 404, 482, 505, 580, 808, 964, 1010, 1160, 1205, 1928, 2020, 2410, 2929, 4040, 4820, 5858, 6989, 9640, 11716, 13978, 14645, 23432, 24341, 27956, 29290, 34945, 48682, 55912, 58580, 69890, 97364, 117160, 121705, 139780, 194728, 243410, 279560, 486820, 705889, 973640, 1411778, 2823556, 3529445, 5647112, 7058890, 14117780, 28235560]

約数ペア:

[(1, 28235560), (2, 14117780), (4, 7058890), (5, 5647112), (8, 3529445), (10, 2823556), (20, 1411778), (29, 973640), (40, 705889), (58, 486820), (101, 279560), (116, 243410), (145, 194728), (202, 139780), (232, 121705), (241, 117160), (290, 97364), (404, 69890), (482, 58580), (505, 55912), (580, 48682), (808, 34945), (964, 29290), (1010, 27956), (1160, 24341), (1205, 23432), (1928, 14645), (2020, 13978), (2410, 11716), (2929, 9640), (4040, 6989), (4820, 5858)]