72003140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{509}}^1\times {\mathrm{643}}^1$

素因数の和:1172

約数の個数: 48

約数和(自身を含む): 165533760

約数和(自身を除く): 93530620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 509, 643, 1018, 1286, 2036, 2545, 2572, 3215, 5090, 5599, 6430, 7073, 10180, 11198, 12860, 14146, 22396, 27995, 28292, 35365, 55990, 70730, 111980, 141460, 327287, 654574, 1309148, 1636435, 3272870, 3600157, 6545740, 7200314, 14400628, 18000785, 36001570, 72003140]

約数ペア:

[(1, 72003140), (2, 36001570), (4, 18000785), (5, 14400628), (10, 7200314), (11, 6545740), (20, 3600157), (22, 3272870), (44, 1636435), (55, 1309148), (110, 654574), (220, 327287), (509, 141460), (643, 111980), (1018, 70730), (1286, 55990), (2036, 35365), (2545, 28292), (2572, 27995), (3215, 22396), (5090, 14146), (5599, 12860), (6430, 11198), (7073, 10180)]