640405.0000000

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{839}}^1$

素因数の和:935

約数の個数: 48

約数和(自身を含む): 16511040

約数和(自身を除く): 10243710

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 83, 90, 166, 249, 415, 498, 747, 830, 839, 1245, 1494, 1678, 2490, 2517, 3735, 4195, 5034, 7470, 7551, 8390, 12585, 15102, 25170, 37755, 69637, 75510, 139274, 208911, 348185, 417822, 626733, 696370, 1044555, 1253466, 2089110, 3133665, 6267330]

約数ペア:

[(1, 6267330), (2, 3133665), (3, 2089110), (5, 1253466), (6, 1044555), (9, 696370), (10, 626733), (15, 417822), (18, 348185), (30, 208911), (45, 139274), (83, 75510), (90, 69637), (166, 37755), (249, 25170), (415, 15102), (498, 12585), (747, 8390), (830, 7551), (839, 7470), (1245, 5034), (1494, 4195), (1678, 3735), (2490, 2517)]