1261272155

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{409}}^1$

素因数の和:684

約数の個数: 64

約数和(自身を含む): 1884556800

約数和(自身を除く): 623284645

約数列:

[1, 5, 11, 13, 19, 55, 65, 95, 143, 209, 227, 247, 409, 715, 1045, 1135, 1235, 2045, 2497, 2717, 2951, 4313, 4499, 5317, 7771, 12485, 13585, 14755, 21565, 22495, 26585, 32461, 38855, 47443, 56069, 58487, 85481, 92843, 101023, 162305, 237215, 280345, 292435, 427405, 464215, 505115, 616759, 1021273, 1111253, 1206959, 1764017, 3083795, 5106365, 5556265, 6034795, 8820085, 13276549, 19404187, 22932221, 66382745, 97020935, 114661105, 252254431, 1261272155]

約数ペア:

[(1, 1261272155), (5, 252254431), (11, 114661105), (13, 97020935), (19, 66382745), (55, 22932221), (65, 19404187), (95, 13276549), (143, 8820085), (209, 6034795), (227, 5556265), (247, 5106365), (409, 3083795), (715, 1764017), (1045, 1206959), (1135, 1111253), (1235, 1021273), (2045, 616759), (2497, 505115), (2717, 464215), (2951, 427405), (4313, 292435), (4499, 280345), (5317, 237215), (7771, 162305), (12485, 101023), (13585, 92843), (14755, 85481), (21565, 58487), (22495, 56069), (26585, 47443), (32461, 38855)]