51007280

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15551}}^1$

素因数の和:15605

約数の個数: 40

約数和(自身を含む): 121492224

約数和(自身を除く): 70484944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 15551, 31102, 62204, 77755, 124408, 155510, 248816, 311020, 622040, 637591, 1244080, 1275182, 2550364, 3187955, 5100728, 6375910, 10201456, 12751820, 25503640, 51007280]

約数ペア:

[(1, 51007280), (2, 25503640), (4, 12751820), (5, 10201456), (8, 6375910), (10, 5100728), (16, 3187955), (20, 2550364), (40, 1275182), (41, 1244080), (80, 637591), (82, 622040), (164, 311020), (205, 248816), (328, 155510), (410, 124408), (656, 77755), (820, 62204), (1640, 31102), (3280, 15551)]