15981784

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{757}}^1$

素因数の和:812

約数の個数: 64

約数和(自身を含む): 38203200

約数和(自身を除く): 22221416

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 29, 52, 56, 58, 91, 104, 116, 182, 203, 232, 364, 377, 406, 728, 754, 757, 812, 1508, 1514, 1624, 2639, 3016, 3028, 5278, 5299, 6056, 9841, 10556, 10598, 19682, 21112, 21196, 21953, 39364, 42392, 43906, 68887, 78728, 87812, 137774, 153671, 175624, 275548, 285389, 307342, 551096, 570778, 614684, 1141556, 1229368, 1997723, 2283112, 3995446, 7990892, 15981784]

約数ペア:

[(1, 15981784), (2, 7990892), (4, 3995446), (7, 2283112), (8, 1997723), (13, 1229368), (14, 1141556), (26, 614684), (28, 570778), (29, 551096), (52, 307342), (56, 285389), (58, 275548), (91, 175624), (104, 153671), (116, 137774), (182, 87812), (203, 78728), (232, 68887), (364, 43906), (377, 42392), (406, 39364), (728, 21953), (754, 21196), (757, 21112), (812, 19682), (1508, 10598), (1514, 10556), (1624, 9841), (2639, 6056), (3016, 5299), (3028, 5278)]