81891316

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{23}}^2\times {\mathrm{229}}^1$

素因数の和:305

約数の個数: 54

約数和(自身を含む): 162930390

約数和(自身を除く): 81039074

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 92, 169, 229, 299, 338, 458, 529, 598, 676, 916, 1058, 1196, 2116, 2977, 3887, 5267, 5954, 6877, 7774, 10534, 11908, 13754, 15548, 21068, 27508, 38701, 68471, 77402, 89401, 121141, 136942, 154804, 178802, 242282, 273884, 357604, 484564, 890123, 1574833, 1780246, 3149666, 3560492, 6299332, 20472829, 40945658, 81891316]

約数ペア:

[(1, 81891316), (2, 40945658), (4, 20472829), (13, 6299332), (23, 3560492), (26, 3149666), (46, 1780246), (52, 1574833), (92, 890123), (169, 484564), (229, 357604), (299, 273884), (338, 242282), (458, 178802), (529, 154804), (598, 136942), (676, 121141), (916, 89401), (1058, 77402), (1196, 68471), (2116, 38701), (2977, 27508), (3887, 21068), (5267, 15548), (5954, 13754), (6877, 11908), (7774, 10534)]