20400276

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{521}}^1$

素因数の和:792

約数の個数: 48

約数和(自身を含む): 51565248

約数和(自身を除く): 31164972

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 251, 502, 521, 753, 1004, 1042, 1506, 1563, 2084, 3012, 3126, 3263, 6252, 6526, 6773, 9789, 13052, 13546, 19578, 20319, 27092, 39156, 40638, 81276, 130771, 261542, 392313, 523084, 784626, 1569252, 1700023, 3400046, 5100069, 6800092, 10200138, 20400276]

約数ペア:

[(1, 20400276), (2, 10200138), (3, 6800092), (4, 5100069), (6, 3400046), (12, 1700023), (13, 1569252), (26, 784626), (39, 523084), (52, 392313), (78, 261542), (156, 130771), (251, 81276), (502, 40638), (521, 39156), (753, 27092), (1004, 20319), (1042, 19578), (1506, 13546), (1563, 13052), (2084, 9789), (3012, 6773), (3126, 6526), (3263, 6252)]