20899256

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{757}}^1$

素因数の和:816

約数の個数: 64

約数和(自身を含む): 49118400

約数和(自身を除く): 28219144

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 29, 34, 56, 58, 68, 116, 119, 136, 203, 232, 238, 406, 476, 493, 757, 812, 952, 986, 1514, 1624, 1972, 3028, 3451, 3944, 5299, 6056, 6902, 10598, 12869, 13804, 21196, 21953, 25738, 27608, 42392, 43906, 51476, 87812, 90083, 102952, 153671, 175624, 180166, 307342, 360332, 373201, 614684, 720664, 746402, 1229368, 1492804, 2612407, 2985608, 5224814, 10449628, 20899256]

約数ペア:

[(1, 20899256), (2, 10449628), (4, 5224814), (7, 2985608), (8, 2612407), (14, 1492804), (17, 1229368), (28, 746402), (29, 720664), (34, 614684), (56, 373201), (58, 360332), (68, 307342), (116, 180166), (119, 175624), (136, 153671), (203, 102952), (232, 90083), (238, 87812), (406, 51476), (476, 43906), (493, 42392), (757, 27608), (812, 25738), (952, 21953), (986, 21196), (1514, 13804), (1624, 12869), (1972, 10598), (3028, 6902), (3451, 6056), (3944, 5299)]