20091681025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{14779}}^1$

素因数の和:14938

約数の個数: 48

約数和(自身を含む): 27710726400

約数和(自身を除く): 7619045375

約数列:

[1, 5, 13, 25, 47, 65, 89, 235, 325, 445, 611, 1157, 1175, 2225, 3055, 4183, 5785, 14779, 15275, 20915, 28925, 54379, 73895, 104575, 192127, 271895, 369475, 694613, 960635, 1315331, 1359475, 3473065, 4803175, 6576655, 9029969, 17099303, 17365325, 32883275, 45149845, 61820557, 85496515, 225749225, 309102785, 427482575, 803667241, 1545513925, 4018336205, 20091681025]

約数ペア:

[(1, 20091681025), (5, 4018336205), (13, 1545513925), (25, 803667241), (47, 427482575), (65, 309102785), (89, 225749225), (235, 85496515), (325, 61820557), (445, 45149845), (611, 32883275), (1157, 17365325), (1175, 17099303), (2225, 9029969), (3055, 6576655), (4183, 4803175), (5785, 3473065), (14779, 1359475), (15275, 1315331), (20915, 960635), (28925, 694613), (54379, 369475), (73895, 271895), (104575, 192127)]