406331960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1\times {\mathrm{1217}}^1$

素因数の和:1736

約数の個数: 64

約数和(自身を含む): 970794720

約数和(自身を除く): 564462760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 491, 680, 982, 1217, 1964, 2434, 2455, 3928, 4868, 4910, 6085, 8347, 9736, 9820, 12170, 16694, 19640, 20689, 24340, 33388, 41378, 41735, 48680, 66776, 82756, 83470, 103445, 165512, 166940, 206890, 333880, 413780, 597547, 827560, 1195094, 2390188, 2987735, 4780376, 5975470, 10158299, 11950940, 20316598, 23901880, 40633196, 50791495, 81266392, 101582990, 203165980, 406331960]

約数ペア:

[(1, 406331960), (2, 203165980), (4, 101582990), (5, 81266392), (8, 50791495), (10, 40633196), (17, 23901880), (20, 20316598), (34, 11950940), (40, 10158299), (68, 5975470), (85, 4780376), (136, 2987735), (170, 2390188), (340, 1195094), (491, 827560), (680, 597547), (982, 413780), (1217, 333880), (1964, 206890), (2434, 166940), (2455, 165512), (3928, 103445), (4868, 83470), (4910, 82756), (6085, 66776), (8347, 48680), (9736, 41735), (9820, 41378), (12170, 33388), (16694, 24340), (19640, 20689)]