55228120

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:412

約数の個数: 64

約数和(自身を含む): 128304000

約数和(自身を除く): 73075880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 109, 212, 218, 239, 265, 424, 436, 478, 530, 545, 872, 956, 1060, 1090, 1195, 1912, 2120, 2180, 2390, 4360, 4780, 5777, 9560, 11554, 12667, 23108, 25334, 26051, 28885, 46216, 50668, 52102, 57770, 63335, 101336, 104204, 115540, 126670, 130255, 208408, 231080, 253340, 260510, 506680, 521020, 1042040, 1380703, 2761406, 5522812, 6903515, 11045624, 13807030, 27614060, 55228120]

約数ペア:

[(1, 55228120), (2, 27614060), (4, 13807030), (5, 11045624), (8, 6903515), (10, 5522812), (20, 2761406), (40, 1380703), (53, 1042040), (106, 521020), (109, 506680), (212, 260510), (218, 253340), (239, 231080), (265, 208408), (424, 130255), (436, 126670), (478, 115540), (530, 104204), (545, 101336), (872, 63335), (956, 57770), (1060, 52102), (1090, 50668), (1195, 46216), (1912, 28885), (2120, 26051), (2180, 25334), (2390, 23108), (4360, 12667), (4780, 11554), (5777, 9560)]