640527312

素因数分解:

$2^4\times 3^1\times {\mathrm{43}}^1\times {\mathrm{310333}}^1$

素因数の和:310387

約数の個数: 40

約数和(自身を含む): 1693182304

約数和(自身を除く): 1052654992

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 43, 48, 86, 129, 172, 258, 344, 516, 688, 1032, 2064, 310333, 620666, 930999, 1241332, 1861998, 2482664, 3723996, 4965328, 7447992, 13344319, 14895984, 26688638, 40032957, 53377276, 80065914, 106754552, 160131828, 213509104, 320263656, 640527312]

約数ペア:

[(1, 640527312), (2, 320263656), (3, 213509104), (4, 160131828), (6, 106754552), (8, 80065914), (12, 53377276), (16, 40032957), (24, 26688638), (43, 14895984), (48, 13344319), (86, 7447992), (129, 4965328), (172, 3723996), (258, 2482664), (344, 1861998), (516, 1241332), (688, 930999), (1032, 620666), (2064, 310333)]