390497080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{314917}}^1$

素因数の和:314959

約数の個数: 32

約数和(自身を含む): 906963840

約数和(自身を除く): 516466760

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 314917, 629834, 1259668, 1574585, 2519336, 3149170, 6298340, 9762427, 12596680, 19524854, 39049708, 48812135, 78099416, 97624270, 195248540, 390497080]

約数ペア:

[(1, 390497080), (2, 195248540), (4, 97624270), (5, 78099416), (8, 48812135), (10, 39049708), (20, 19524854), (31, 12596680), (40, 9762427), (62, 6298340), (124, 3149170), (155, 2519336), (248, 1574585), (310, 1259668), (620, 629834), (1240, 314917)]