389627960

素因数分解:

$2^3\times 5^1\times {\mathrm{787}}^1\times {\mathrm{12377}}^1$

素因数の和:13175

約数の個数: 32

約数和(自身を含む): 877847760

約数和(自身を除く): 488219800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 787, 1574, 3148, 3935, 6296, 7870, 12377, 15740, 24754, 31480, 49508, 61885, 99016, 123770, 247540, 495080, 9740699, 19481398, 38962796, 48703495, 77925592, 97406990, 194813980, 389627960]

約数ペア:

[(1, 389627960), (2, 194813980), (4, 97406990), (5, 77925592), (8, 48703495), (10, 38962796), (20, 19481398), (40, 9740699), (787, 495080), (1574, 247540), (3148, 123770), (3935, 99016), (6296, 61885), (7870, 49508), (12377, 31480), (15740, 24754)]