2720448.00000000

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{263}}^1$

素因数の和:464

約数の個数: 64

約数和(自身を含む): 149688000

約数和(自身を除く): 85421320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 149, 164, 205, 263, 298, 328, 410, 526, 596, 745, 820, 1052, 1192, 1315, 1490, 1640, 2104, 2630, 2980, 5260, 5960, 6109, 10520, 10783, 12218, 21566, 24436, 30545, 39187, 43132, 48872, 53915, 61090, 78374, 86264, 107830, 122180, 156748, 195935, 215660, 244360, 313496, 391870, 431320, 783740, 1567480, 1606667, 3213334, 6426668, 8033335, 12853336, 16066670, 32133340, 64266680]

約数ペア:

[(1, 64266680), (2, 32133340), (4, 16066670), (5, 12853336), (8, 8033335), (10, 6426668), (20, 3213334), (40, 1606667), (41, 1567480), (82, 783740), (149, 431320), (164, 391870), (205, 313496), (263, 244360), (298, 215660), (328, 195935), (410, 156748), (526, 122180), (596, 107830), (745, 86264), (820, 78374), (1052, 61090), (1192, 53915), (1315, 48872), (1490, 43132), (1640, 39187), (2104, 30545), (2630, 24436), (2980, 21566), (5260, 12218), (5960, 10783), (6109, 10520)]