20833997540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1\times {\mathrm{1811}}^1$

素因数の和:2213

約数の個数: 96

約数和(自身を含む): 46356468480

約数和(自身を除く): 25522470940

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 89, 92, 115, 178, 230, 281, 356, 445, 460, 562, 890, 1124, 1405, 1780, 1811, 2047, 2810, 3622, 4094, 5620, 6463, 7244, 8188, 9055, 10235, 12926, 18110, 20470, 25009, 25852, 32315, 36220, 40940, 41653, 50018, 64630, 83306, 100036, 125045, 129260, 161179, 166612, 208265, 250090, 322358, 416530, 500180, 508891, 575207, 644716, 805895, 833060, 1017782, 1150414, 1611790, 2035564, 2300828, 2544455, 2876035, 3223580, 3707117, 5088910, 5752070, 7414234, 10177820, 11504140, 11704493, 14828468, 18535585, 23408986, 37071170, 45291299, 46817972, 58522465, 74142340, 90582598, 117044930, 181165196, 226456495, 234089860, 452912990, 905825980, 1041699877, 2083399754, 4166799508, 5208499385, 10416998770, 20833997540]

約数ペア:

[(1, 20833997540), (2, 10416998770), (4, 5208499385), (5, 4166799508), (10, 2083399754), (20, 1041699877), (23, 905825980), (46, 452912990), (89, 234089860), (92, 226456495), (115, 181165196), (178, 117044930), (230, 90582598), (281, 74142340), (356, 58522465), (445, 46817972), (460, 45291299), (562, 37071170), (890, 23408986), (1124, 18535585), (1405, 14828468), (1780, 11704493), (1811, 11504140), (2047, 10177820), (2810, 7414234), (3622, 5752070), (4094, 5088910), (5620, 3707117), (6463, 3223580), (7244, 2876035), (8188, 2544455), (9055, 2300828), (10235, 2035564), (12926, 1611790), (18110, 1150414), (20470, 1017782), (25009, 833060), (25852, 805895), (32315, 644716), (36220, 575207), (40940, 508891), (41653, 500180), (50018, 416530), (64630, 322358), (83306, 250090), (100036, 208265), (125045, 166612), (129260, 161179)]