826625720

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{2161}}^1$

素因数の和:2376

約数の個数: 64

約数和(自身を含む): 1900657440

約数和(自身を除く): 1074031720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 131, 146, 262, 292, 365, 524, 584, 655, 730, 1048, 1310, 1460, 2161, 2620, 2920, 4322, 5240, 8644, 9563, 10805, 17288, 19126, 21610, 38252, 43220, 47815, 76504, 86440, 95630, 157753, 191260, 283091, 315506, 382520, 566182, 631012, 788765, 1132364, 1262024, 1415455, 1577530, 2264728, 2830910, 3155060, 5661820, 6310120, 11323640, 20665643, 41331286, 82662572, 103328215, 165325144, 206656430, 413312860, 826625720]

約数ペア:

[(1, 826625720), (2, 413312860), (4, 206656430), (5, 165325144), (8, 103328215), (10, 82662572), (20, 41331286), (40, 20665643), (73, 11323640), (131, 6310120), (146, 5661820), (262, 3155060), (292, 2830910), (365, 2264728), (524, 1577530), (584, 1415455), (655, 1262024), (730, 1132364), (1048, 788765), (1310, 631012), (1460, 566182), (2161, 382520), (2620, 315506), (2920, 283091), (4322, 191260), (5240, 157753), (8644, 95630), (9563, 86440), (10805, 76504), (17288, 47815), (19126, 43220), (21610, 38252)]