25078840

素因数分解:

$2^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{1637}}^1$

素因数の和:2031

約数の個数: 32

約数和(自身を含む): 56609280

約数和(自身を除く): 31530440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 383, 766, 1532, 1637, 1915, 3064, 3274, 3830, 6548, 7660, 8185, 13096, 15320, 16370, 32740, 65480, 626971, 1253942, 2507884, 3134855, 5015768, 6269710, 12539420, 25078840]

約数ペア:

[(1, 25078840), (2, 12539420), (4, 6269710), (5, 5015768), (8, 3134855), (10, 2507884), (20, 1253942), (40, 626971), (383, 65480), (766, 32740), (1532, 16370), (1637, 15320), (1915, 13096), (3064, 8185), (3274, 7660), (3830, 6548)]