81405418

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{2539}}^1$

素因数の和:2622

約数の個数: 32

約数和(自身を含む): 138257280

約数和(自身を除く): 56851862

約数列:

[1, 2, 17, 23, 34, 41, 46, 82, 391, 697, 782, 943, 1394, 1886, 2539, 5078, 16031, 32062, 43163, 58397, 86326, 104099, 116794, 208198, 992749, 1769683, 1985498, 2394277, 3539366, 4788554, 40702709, 81405418]

約数ペア:

[(1, 81405418), (2, 40702709), (17, 4788554), (23, 3539366), (34, 2394277), (41, 1985498), (46, 1769683), (82, 992749), (391, 208198), (697, 116794), (782, 104099), (943, 86326), (1394, 58397), (1886, 43163), (2539, 32062), (5078, 16031)]