639823920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{2665933}}^1$

素因数の和:2665949

約数の個数: 40

約数和(自身を含む): 1983454896

約数和(自身を除く): 1343630976

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 2665933, 5331866, 7997799, 10663732, 13329665, 15995598, 21327464, 26659330, 31991196, 39988995, 42654928, 53318660, 63982392, 79977990, 106637320, 127964784, 159955980, 213274640, 319911960, 639823920]

約数ペア:

[(1, 639823920), (2, 319911960), (3, 213274640), (4, 159955980), (5, 127964784), (6, 106637320), (8, 79977990), (10, 63982392), (12, 53318660), (15, 42654928), (16, 39988995), (20, 31991196), (24, 26659330), (30, 21327464), (40, 15995598), (48, 13329665), (60, 10663732), (80, 7997799), (120, 5331866), (240, 2665933)]