20005978465

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{761}}^1\times {\mathrm{2287}}^1$

素因数の和:3094

約数の個数: 48

約数和(自身を含む): 27825557760

約数和(自身を除く): 7819579295

約数列:

[1, 5, 11, 19, 55, 95, 121, 209, 605, 761, 1045, 2287, 2299, 3805, 8371, 11435, 11495, 14459, 25157, 41855, 43453, 72295, 92081, 125785, 159049, 217265, 276727, 460405, 477983, 795245, 1383635, 1740407, 1749539, 2389915, 5257813, 8702035, 8747695, 19144477, 26289065, 33067733, 95722385, 165338665, 210589247, 363745063, 1052946235, 1818725315, 4001195693, 20005978465]

約数ペア:

[(1, 20005978465), (5, 4001195693), (11, 1818725315), (19, 1052946235), (55, 363745063), (95, 210589247), (121, 165338665), (209, 95722385), (605, 33067733), (761, 26289065), (1045, 19144477), (2287, 8747695), (2299, 8702035), (3805, 5257813), (8371, 2389915), (11435, 1749539), (11495, 1740407), (14459, 1383635), (25157, 795245), (41855, 477983), (43453, 460405), (72295, 276727), (92081, 217265), (125785, 159049)]