20485260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1559}}^1$

素因数の和:1647

約数の個数: 72

約数和(自身を含む): 63030240

約数和(自身を除く): 42544980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 73, 90, 146, 180, 219, 292, 365, 438, 657, 730, 876, 1095, 1314, 1460, 1559, 2190, 2628, 3118, 3285, 4380, 4677, 6236, 6570, 7795, 9354, 13140, 14031, 15590, 18708, 23385, 28062, 31180, 46770, 56124, 70155, 93540, 113807, 140310, 227614, 280620, 341421, 455228, 569035, 682842, 1024263, 1138070, 1365684, 1707105, 2048526, 2276140, 3414210, 4097052, 5121315, 6828420, 10242630, 20485260]

約数ペア:

[(1, 20485260), (2, 10242630), (3, 6828420), (4, 5121315), (5, 4097052), (6, 3414210), (9, 2276140), (10, 2048526), (12, 1707105), (15, 1365684), (18, 1138070), (20, 1024263), (30, 682842), (36, 569035), (45, 455228), (60, 341421), (73, 280620), (90, 227614), (146, 140310), (180, 113807), (219, 93540), (292, 70155), (365, 56124), (438, 46770), (657, 31180), (730, 28062), (876, 23385), (1095, 18708), (1314, 15590), (1460, 14031), (1559, 13140), (2190, 9354), (2628, 7795), (3118, 6570), (3285, 6236), (4380, 4677)]