61290640

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{3889}}^1$

素因数の和:4099

約数の個数: 40

約数和(自身を含む): 143260920

約数和(自身を除く): 81970280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 3152, 3889, 3940, 7778, 7880, 15556, 15760, 19445, 31112, 38890, 62224, 77780, 155560, 311120, 766133, 1532266, 3064532, 3830665, 6129064, 7661330, 12258128, 15322660, 30645320, 61290640]

約数ペア:

[(1, 61290640), (2, 30645320), (4, 15322660), (5, 12258128), (8, 7661330), (10, 6129064), (16, 3830665), (20, 3064532), (40, 1532266), (80, 766133), (197, 311120), (394, 155560), (788, 77780), (985, 62224), (1576, 38890), (1970, 31112), (3152, 19445), (3889, 15760), (3940, 15556), (7778, 7880)]