1915204840

素因数分解:

$2^3\times 5^1\times {\mathrm{47880121}}^1$

素因数の和:47880132

約数の個数: 16

約数和(自身を含む): 4309210980

約数和(自身を除く): 2394006140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47880121, 95760242, 191520484, 239400605, 383040968, 478801210, 957602420, 1915204840]

約数ペア:

[(1, 1915204840), (2, 957602420), (4, 478801210), (5, 383040968), (8, 239400605), (10, 191520484), (20, 95760242), (40, 47880121)]