80291386

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1\times {\mathrm{313}}^1$

素因数の和:646

約数の個数: 32

約数和(自身を含む): 140531328

約数和(自身を除く): 60239942

約数列:

[1, 2, 7, 14, 73, 146, 251, 313, 502, 511, 626, 1022, 1757, 2191, 3514, 4382, 18323, 22849, 36646, 45698, 78563, 128261, 157126, 159943, 256522, 319886, 549941, 1099882, 5735099, 11470198, 40145693, 80291386]

約数ペア:

[(1, 80291386), (2, 40145693), (7, 11470198), (14, 5735099), (73, 1099882), (146, 549941), (251, 319886), (313, 256522), (502, 159943), (511, 157126), (626, 128261), (1022, 78563), (1757, 45698), (2191, 36646), (3514, 22849), (4382, 18323)]