31903880

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:314

約数の個数: 64

約数和(自身を含む): 74358000

約数和(自身を除く): 42454120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 101, 106, 149, 202, 212, 265, 298, 404, 424, 505, 530, 596, 745, 808, 1010, 1060, 1192, 1490, 2020, 2120, 2980, 4040, 5353, 5960, 7897, 10706, 15049, 15794, 21412, 26765, 30098, 31588, 39485, 42824, 53530, 60196, 63176, 75245, 78970, 107060, 120392, 150490, 157940, 214120, 300980, 315880, 601960, 797597, 1595194, 3190388, 3987985, 6380776, 7975970, 15951940, 31903880]

約数ペア:

[(1, 31903880), (2, 15951940), (4, 7975970), (5, 6380776), (8, 3987985), (10, 3190388), (20, 1595194), (40, 797597), (53, 601960), (101, 315880), (106, 300980), (149, 214120), (202, 157940), (212, 150490), (265, 120392), (298, 107060), (404, 78970), (424, 75245), (505, 63176), (530, 60196), (596, 53530), (745, 42824), (808, 39485), (1010, 31588), (1060, 30098), (1192, 26765), (1490, 21412), (2020, 15794), (2120, 15049), (2980, 10706), (4040, 7897), (5353, 5960)]