54777640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{263}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 127733760

約数和(自身を除く): 72956120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 127, 164, 205, 254, 263, 328, 410, 508, 526, 635, 820, 1016, 1052, 1270, 1315, 1640, 2104, 2540, 2630, 5080, 5207, 5260, 10414, 10520, 10783, 20828, 21566, 26035, 33401, 41656, 43132, 52070, 53915, 66802, 86264, 104140, 107830, 133604, 167005, 208280, 215660, 267208, 334010, 431320, 668020, 1336040, 1369441, 2738882, 5477764, 6847205, 10955528, 13694410, 27388820, 54777640]

約数ペア:

[(1, 54777640), (2, 27388820), (4, 13694410), (5, 10955528), (8, 6847205), (10, 5477764), (20, 2738882), (40, 1369441), (41, 1336040), (82, 668020), (127, 431320), (164, 334010), (205, 267208), (254, 215660), (263, 208280), (328, 167005), (410, 133604), (508, 107830), (526, 104140), (635, 86264), (820, 66802), (1016, 53915), (1052, 52070), (1270, 43132), (1315, 41656), (1640, 33401), (2104, 26035), (2540, 21566), (2630, 20828), (5080, 10783), (5207, 10520), (5260, 10414)]