81581885

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{677}}^1$

素因数の和:1013

約数の個数: 32

約数和(自身を含む): 122625792

約数和(自身を除く): 41043907

約数列:

[1, 5, 7, 11, 35, 55, 77, 313, 385, 677, 1565, 2191, 3385, 3443, 4739, 7447, 10955, 17215, 23695, 24101, 37235, 52129, 120505, 211901, 260645, 1059505, 1483307, 2330911, 7416535, 11654555, 16316377, 81581885]

約数ペア:

[(1, 81581885), (5, 16316377), (7, 11654555), (11, 7416535), (35, 2330911), (55, 1483307), (77, 1059505), (313, 260645), (385, 211901), (677, 120505), (1565, 52129), (2191, 37235), (3385, 24101), (3443, 23695), (4739, 17215), (7447, 10955)]