30509980

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{269}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 66134880

約数和(自身を除く): 35624900

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 107, 212, 214, 265, 269, 428, 530, 535, 538, 1060, 1070, 1076, 1345, 2140, 2690, 5380, 5671, 11342, 14257, 22684, 28355, 28514, 28783, 56710, 57028, 57566, 71285, 113420, 115132, 142570, 143915, 285140, 287830, 575660, 1525499, 3050998, 6101996, 7627495, 15254990, 30509980]

約数ペア:

[(1, 30509980), (2, 15254990), (4, 7627495), (5, 6101996), (10, 3050998), (20, 1525499), (53, 575660), (106, 287830), (107, 285140), (212, 143915), (214, 142570), (265, 115132), (269, 113420), (428, 71285), (530, 57566), (535, 57028), (538, 56710), (1060, 28783), (1070, 28514), (1076, 28355), (1345, 22684), (2140, 14257), (2690, 11342), (5380, 5671)]