138944575

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{811}}^1$

素因数の和:928

約数の個数: 48

約数和(自身を含む): 217486080

約数和(自身を除く): 78541505

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 89, 175, 275, 385, 445, 623, 811, 979, 1925, 2225, 3115, 4055, 4895, 5677, 6853, 8921, 15575, 20275, 24475, 28385, 34265, 44605, 62447, 72179, 141925, 171325, 223025, 312235, 360895, 505253, 793969, 1561175, 1804475, 2526265, 3969845, 5557783, 12631325, 19849225, 27788915, 138944575]

約数ペア:

[(1, 138944575), (5, 27788915), (7, 19849225), (11, 12631325), (25, 5557783), (35, 3969845), (55, 2526265), (77, 1804475), (89, 1561175), (175, 793969), (275, 505253), (385, 360895), (445, 312235), (623, 223025), (811, 171325), (979, 141925), (1925, 72179), (2225, 62447), (3115, 44605), (4055, 34265), (4895, 28385), (5677, 24475), (6853, 20275), (8921, 15575)]