20193420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25889}}^1$

素因数の和:25914

約数の個数: 48

約数和(自身を含む): 60893280

約数和(自身を除く): 40699860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 25889, 51778, 77667, 103556, 129445, 155334, 258890, 310668, 336557, 388335, 517780, 673114, 776670, 1009671, 1346228, 1553340, 1682785, 2019342, 3365570, 4038684, 5048355, 6731140, 10096710, 20193420]

約数ペア:

[(1, 20193420), (2, 10096710), (3, 6731140), (4, 5048355), (5, 4038684), (6, 3365570), (10, 2019342), (12, 1682785), (13, 1553340), (15, 1346228), (20, 1009671), (26, 776670), (30, 673114), (39, 517780), (52, 388335), (60, 336557), (65, 310668), (78, 258890), (130, 155334), (156, 129445), (195, 103556), (260, 77667), (390, 51778), (780, 25889)]