39798560

素因数分解:

$2^5\times 5^1\times {\mathrm{251}}^1\times {\mathrm{991}}^1$

素因数の和:1257

約数の個数: 48

約数和(自身を含む): 94493952

約数和(自身を除く): 54695392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 251, 502, 991, 1004, 1255, 1982, 2008, 2510, 3964, 4016, 4955, 5020, 7928, 8032, 9910, 10040, 15856, 19820, 20080, 31712, 39640, 40160, 79280, 158560, 248741, 497482, 994964, 1243705, 1989928, 2487410, 3979856, 4974820, 7959712, 9949640, 19899280, 39798560]

約数ペア:

[(1, 39798560), (2, 19899280), (4, 9949640), (5, 7959712), (8, 4974820), (10, 3979856), (16, 2487410), (20, 1989928), (32, 1243705), (40, 994964), (80, 497482), (160, 248741), (251, 158560), (502, 79280), (991, 40160), (1004, 39640), (1255, 31712), (1982, 20080), (2008, 19820), (2510, 15856), (3964, 10040), (4016, 9910), (4955, 8032), (5020, 7928)]