405535260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{519917}}^1$

素因数の和:519942

約数の個数: 48

約数和(自身を含む): 1222847136

約数和(自身を除く): 817311876

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, 519917, 1039834, 1559751, 2079668, 2599585, 3119502, 5199170, 6239004, 6758921, 7798755, 10398340, 13517842, 15597510, 20276763, 27035684, 31195020, 33794605, 40553526, 67589210, 81107052, 101383815, 135178420, 202767630, 405535260]

約数ペア:

[(1, 405535260), (2, 202767630), (3, 135178420), (4, 101383815), (5, 81107052), (6, 67589210), (10, 40553526), (12, 33794605), (13, 31195020), (15, 27035684), (20, 20276763), (26, 15597510), (30, 13517842), (39, 10398340), (52, 7798755), (60, 6758921), (65, 6239004), (78, 5199170), (130, 3119502), (156, 2599585), (195, 2079668), (260, 1559751), (390, 1039834), (780, 519917)]