1291269136

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{4747313}}^1$

素因数の和:4747338

約数の個数: 20

約数和(自身を含む): 2649001212

約数和(自身を除く): 1357732076

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 4747313, 9494626, 18989252, 37978504, 75957008, 80704321, 161408642, 322817284, 645634568, 1291269136]

約数ペア:

[(1, 1291269136), (2, 645634568), (4, 322817284), (8, 161408642), (16, 80704321), (17, 75957008), (34, 37978504), (68, 18989252), (136, 9494626), (272, 4747313)]