315034520

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{39979}}^1$

素因数の和:40187

約数の個数: 32

約数和(自身を含む): 712443600

約数和(自身を除く): 397409080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 39979, 79958, 159916, 199895, 319832, 399790, 799580, 1599160, 7875863, 15751726, 31503452, 39379315, 63006904, 78758630, 157517260, 315034520]

約数ペア:

[(1, 315034520), (2, 157517260), (4, 78758630), (5, 63006904), (8, 39379315), (10, 31503452), (20, 15751726), (40, 7875863), (197, 1599160), (394, 799580), (788, 399790), (985, 319832), (1576, 199895), (1970, 159916), (3940, 79958), (7880, 39979)]