18694980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{367}}^1$

素因数の和:665

約数の個数: 72

約数和(自身を含む): 57063552

約数和(自身を除く): 38368572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 283, 367, 566, 734, 849, 1101, 1132, 1415, 1468, 1698, 1835, 2202, 2547, 2830, 3303, 3396, 3670, 4245, 4404, 5094, 5505, 5660, 6606, 7340, 8490, 10188, 11010, 12735, 13212, 16515, 16980, 22020, 25470, 33030, 50940, 66060, 103861, 207722, 311583, 415444, 519305, 623166, 934749, 1038610, 1246332, 1557915, 1869498, 2077220, 3115830, 3738996, 4673745, 6231660, 9347490, 18694980]

約数ペア:

[(1, 18694980), (2, 9347490), (3, 6231660), (4, 4673745), (5, 3738996), (6, 3115830), (9, 2077220), (10, 1869498), (12, 1557915), (15, 1246332), (18, 1038610), (20, 934749), (30, 623166), (36, 519305), (45, 415444), (60, 311583), (90, 207722), (180, 103861), (283, 66060), (367, 50940), (566, 33030), (734, 25470), (849, 22020), (1101, 16980), (1132, 16515), (1415, 13212), (1468, 12735), (1698, 11010), (1835, 10188), (2202, 8490), (2547, 7340), (2830, 6606), (3303, 5660), (3396, 5505), (3670, 5094), (4245, 4404)]