19467640

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 45554400

約数和(自身を除く): 26086760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 73, 113, 118, 146, 226, 236, 292, 295, 365, 452, 472, 565, 584, 590, 730, 904, 1130, 1180, 1460, 2260, 2360, 2920, 4307, 4520, 6667, 8249, 8614, 13334, 16498, 17228, 21535, 26668, 32996, 33335, 34456, 41245, 43070, 53336, 65992, 66670, 82490, 86140, 133340, 164980, 172280, 266680, 329960, 486691, 973382, 1946764, 2433455, 3893528, 4866910, 9733820, 19467640]

約数ペア:

[(1, 19467640), (2, 9733820), (4, 4866910), (5, 3893528), (8, 2433455), (10, 1946764), (20, 973382), (40, 486691), (59, 329960), (73, 266680), (113, 172280), (118, 164980), (146, 133340), (226, 86140), (236, 82490), (292, 66670), (295, 65992), (365, 53336), (452, 43070), (472, 41245), (565, 34456), (584, 33335), (590, 32996), (730, 26668), (904, 21535), (1130, 17228), (1180, 16498), (1460, 13334), (2260, 8614), (2360, 8249), (2920, 6667), (4307, 4520)]