1298397980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{32971}}^1$

素因数の和:33170

約数の個数: 48

約数和(自身を含む): 2991219840

約数和(自身を除く): 1692821860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 179, 220, 358, 716, 895, 1790, 1969, 3580, 3938, 7876, 9845, 19690, 32971, 39380, 65942, 131884, 164855, 329710, 362681, 659420, 725362, 1450724, 1813405, 3626810, 5901809, 7253620, 11803618, 23607236, 29509045, 59018090, 64919899, 118036180, 129839798, 259679596, 324599495, 649198990, 1298397980]

約数ペア:

[(1, 1298397980), (2, 649198990), (4, 324599495), (5, 259679596), (10, 129839798), (11, 118036180), (20, 64919899), (22, 59018090), (44, 29509045), (55, 23607236), (110, 11803618), (179, 7253620), (220, 5901809), (358, 3626810), (716, 1813405), (895, 1450724), (1790, 725362), (1969, 659420), (3580, 362681), (3938, 329710), (7876, 164855), (9845, 131884), (19690, 65942), (32971, 39380)]