128935880

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{21347}}^1$

素因数の和:21509

約数の個数: 32

約数和(自身を含む): 292040640

約数和(自身を除く): 163104760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 604, 755, 1208, 1510, 3020, 6040, 21347, 42694, 85388, 106735, 170776, 213470, 426940, 853880, 3223397, 6446794, 12893588, 16116985, 25787176, 32233970, 64467940, 128935880]

約数ペア:

[(1, 128935880), (2, 64467940), (4, 32233970), (5, 25787176), (8, 16116985), (10, 12893588), (20, 6446794), (40, 3223397), (151, 853880), (302, 426940), (604, 213470), (755, 170776), (1208, 106735), (1510, 85388), (3020, 42694), (6040, 21347)]