321130550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{15937}}^1$

素因数の和:15993

約数の個数: 48

約数和(自身を含む): 664040832

約数和(自身を除く): 342910282

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1550, 2015, 4030, 10075, 15937, 20150, 31874, 79685, 159370, 207181, 398425, 414362, 494047, 796850, 988094, 1035905, 2071810, 2470235, 4940470, 5179525, 6422611, 10359050, 12351175, 12845222, 24702350, 32113055, 64226110, 160565275, 321130550]

約数ペア:

[(1, 321130550), (2, 160565275), (5, 64226110), (10, 32113055), (13, 24702350), (25, 12845222), (26, 12351175), (31, 10359050), (50, 6422611), (62, 5179525), (65, 4940470), (130, 2470235), (155, 2071810), (310, 1035905), (325, 988094), (403, 796850), (650, 494047), (775, 414362), (806, 398425), (1550, 207181), (2015, 159370), (4030, 79685), (10075, 31874), (15937, 20150)]