80682580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{1427}}^1$

素因数の和:1704

約数の個数: 48

約数和(自身を含む): 185685696

約数和(自身を除く): 105003116

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 257, 514, 1028, 1285, 1427, 2570, 2827, 2854, 5140, 5654, 5708, 7135, 11308, 14135, 14270, 15697, 28270, 28540, 31394, 56540, 62788, 78485, 156970, 313940, 366739, 733478, 1466956, 1833695, 3667390, 4034129, 7334780, 8068258, 16136516, 20170645, 40341290, 80682580]

約数ペア:

[(1, 80682580), (2, 40341290), (4, 20170645), (5, 16136516), (10, 8068258), (11, 7334780), (20, 4034129), (22, 3667390), (44, 1833695), (55, 1466956), (110, 733478), (220, 366739), (257, 313940), (514, 156970), (1028, 78485), (1285, 62788), (1427, 56540), (2570, 31394), (2827, 28540), (2854, 28270), (5140, 15697), (5654, 14270), (5708, 14135), (7135, 11308)]