31277140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{827}}^1$

素因数の和:928

約数の個数: 48

約数和(自身を含む): 68995584

約数和(自身を除く): 37718444

約数列:

[1, 2, 4, 5, 10, 20, 31, 61, 62, 122, 124, 155, 244, 305, 310, 610, 620, 827, 1220, 1654, 1891, 3308, 3782, 4135, 7564, 8270, 9455, 16540, 18910, 25637, 37820, 50447, 51274, 100894, 102548, 128185, 201788, 252235, 256370, 504470, 512740, 1008940, 1563857, 3127714, 6255428, 7819285, 15638570, 31277140]

約数ペア:

[(1, 31277140), (2, 15638570), (4, 7819285), (5, 6255428), (10, 3127714), (20, 1563857), (31, 1008940), (61, 512740), (62, 504470), (122, 256370), (124, 252235), (155, 201788), (244, 128185), (305, 102548), (310, 100894), (610, 51274), (620, 50447), (827, 37820), (1220, 25637), (1654, 18910), (1891, 16540), (3308, 9455), (3782, 8270), (4135, 7564)]