180785180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{3691}}^1$

素因数の和:3810

約数の個数: 48

約数和(自身を含む): 396963840

約数和(自身を除く): 216178660

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 124, 155, 158, 310, 316, 395, 620, 790, 1580, 2449, 3691, 4898, 7382, 9796, 12245, 14764, 18455, 24490, 36910, 48980, 73820, 114421, 228842, 291589, 457684, 572105, 583178, 1144210, 1166356, 1457945, 2288420, 2915890, 5831780, 9039259, 18078518, 36157036, 45196295, 90392590, 180785180]

約数ペア:

[(1, 180785180), (2, 90392590), (4, 45196295), (5, 36157036), (10, 18078518), (20, 9039259), (31, 5831780), (62, 2915890), (79, 2288420), (124, 1457945), (155, 1166356), (158, 1144210), (310, 583178), (316, 572105), (395, 457684), (620, 291589), (790, 228842), (1580, 114421), (2449, 73820), (3691, 48980), (4898, 36910), (7382, 24490), (9796, 18455), (12245, 14764)]