20408976008

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1231831}}^1$

素因数の和:1231965

約数の個数: 32

約数和(自身を含む): 40650456000

約数和(自身を除く): 20241479992

約数列:

[1, 2, 4, 8, 19, 38, 76, 109, 152, 218, 436, 872, 2071, 4142, 8284, 16568, 1231831, 2463662, 4927324, 9854648, 23404789, 46809578, 93619156, 134269579, 187238312, 268539158, 537078316, 1074156632, 2551122001, 5102244002, 10204488004, 20408976008]

約数ペア:

[(1, 20408976008), (2, 10204488004), (4, 5102244002), (8, 2551122001), (19, 1074156632), (38, 537078316), (76, 268539158), (109, 187238312), (152, 134269579), (218, 93619156), (436, 46809578), (872, 23404789), (2071, 9854648), (4142, 4927324), (8284, 2463662), (16568, 1231831)]