12912016705

素因数分解:

$5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{389}}^1\times {\mathrm{2221}}^1$

素因数の和:2690

約数の個数: 48

約数和(自身を含む): 18374962320

約数和(自身を除く): 5462945615

約数列:

[1, 5, 7, 35, 49, 61, 245, 305, 389, 427, 1945, 2135, 2221, 2723, 2989, 11105, 13615, 14945, 15547, 19061, 23729, 77735, 95305, 108829, 118645, 135481, 166103, 544145, 677405, 830515, 863969, 948367, 1162721, 4319845, 4741835, 5813605, 6047783, 6638569, 30238915, 33192845, 42334481, 52702109, 211672405, 263510545, 368914763, 1844573815, 2582403341, 12912016705]

約数ペア:

[(1, 12912016705), (5, 2582403341), (7, 1844573815), (35, 368914763), (49, 263510545), (61, 211672405), (245, 52702109), (305, 42334481), (389, 33192845), (427, 30238915), (1945, 6638569), (2135, 6047783), (2221, 5813605), (2723, 4741835), (2989, 4319845), (11105, 1162721), (13615, 948367), (14945, 863969), (15547, 830515), (19061, 677405), (23729, 544145), (77735, 166103), (95305, 135481), (108829, 118645)]