390550040

素因数分解:

$2^3\times 5^1\times {\mathrm{751}}^1\times {\mathrm{13001}}^1$

素因数の和:13763

約数の個数: 32

約数和(自身を含む): 879975360

約数和(自身を除く): 489425320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 751, 1502, 3004, 3755, 6008, 7510, 13001, 15020, 26002, 30040, 52004, 65005, 104008, 130010, 260020, 520040, 9763751, 19527502, 39055004, 48818755, 78110008, 97637510, 195275020, 390550040]

約数ペア:

[(1, 390550040), (2, 195275020), (4, 97637510), (5, 78110008), (8, 48818755), (10, 39055004), (20, 19527502), (40, 9763751), (751, 520040), (1502, 260020), (3004, 130010), (3755, 104008), (6008, 65005), (7510, 52004), (13001, 30040), (15020, 26002)]