20475173601

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1\times {\mathrm{887}}^1$

素因数の和:1276

約数の個数: 80

約数和(自身を含む): 32801725440

約数和(自身を除く): 12326551839

約数列:

[1, 3, 9, 27, 29, 31, 81, 87, 93, 261, 279, 317, 783, 837, 887, 899, 951, 2349, 2511, 2661, 2697, 2853, 7983, 8091, 8559, 9193, 9827, 23949, 24273, 25677, 25723, 27497, 27579, 29481, 71847, 72819, 77169, 82491, 82737, 88443, 231507, 247473, 248211, 265329, 281179, 284983, 694521, 742419, 744633, 795987, 797413, 843537, 854949, 2083563, 2227257, 2392239, 2530611, 2564847, 7176717, 7591833, 7694541, 8154191, 8716549, 21530151, 22775499, 23083623, 24462573, 26149647, 64590453, 73387719, 78448941, 220163157, 235346823, 252779921, 660489471, 706040469, 758339763, 2275019289, 6825057867, 20475173601]

約数ペア:

[(1, 20475173601), (3, 6825057867), (9, 2275019289), (27, 758339763), (29, 706040469), (31, 660489471), (81, 252779921), (87, 235346823), (93, 220163157), (261, 78448941), (279, 73387719), (317, 64590453), (783, 26149647), (837, 24462573), (887, 23083623), (899, 22775499), (951, 21530151), (2349, 8716549), (2511, 8154191), (2661, 7694541), (2697, 7591833), (2853, 7176717), (7983, 2564847), (8091, 2530611), (8559, 2392239), (9193, 2227257), (9827, 2083563), (23949, 854949), (24273, 843537), (25677, 797413), (25723, 795987), (27497, 744633), (27579, 742419), (29481, 694521), (71847, 284983), (72819, 281179), (77169, 265329), (82491, 248211), (82737, 247473), (88443, 231507)]