20392980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{283}}^1\times {\mathrm{1201}}^1$

素因数の和:1496

約数の個数: 48

約数和(自身を含む): 57349824

約数和(自身を除く): 36956844

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 283, 566, 849, 1132, 1201, 1415, 1698, 2402, 2830, 3396, 3603, 4245, 4804, 5660, 6005, 7206, 8490, 12010, 14412, 16980, 18015, 24020, 36030, 72060, 339883, 679766, 1019649, 1359532, 1699415, 2039298, 3398830, 4078596, 5098245, 6797660, 10196490, 20392980]

約数ペア:

[(1, 20392980), (2, 10196490), (3, 6797660), (4, 5098245), (5, 4078596), (6, 3398830), (10, 2039298), (12, 1699415), (15, 1359532), (20, 1019649), (30, 679766), (60, 339883), (283, 72060), (566, 36030), (849, 24020), (1132, 18015), (1201, 16980), (1415, 14412), (1698, 12010), (2402, 8490), (2830, 7206), (3396, 6005), (3603, 5660), (4245, 4804)]