20167580225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{4441}}^1$

素因数の和:4710

約数の個数: 48

約数和(自身を含む): 27413714160

約数和(自身を除く): 7246133935

約数列:

[1, 5, 13, 25, 65, 89, 157, 325, 445, 785, 1157, 2041, 2225, 3925, 4441, 5785, 10205, 13973, 22205, 28925, 51025, 57733, 69865, 111025, 181649, 288665, 349325, 395249, 697237, 908245, 1443325, 1976245, 3486185, 4541225, 5138237, 9064081, 9881225, 17430925, 25691185, 45320405, 62054093, 128455925, 226602025, 310270465, 806703209, 1551352325, 4033516045, 20167580225]

約数ペア:

[(1, 20167580225), (5, 4033516045), (13, 1551352325), (25, 806703209), (65, 310270465), (89, 226602025), (157, 128455925), (325, 62054093), (445, 45320405), (785, 25691185), (1157, 17430925), (2041, 9881225), (2225, 9064081), (3925, 5138237), (4441, 4541225), (5785, 3486185), (10205, 1976245), (13973, 1443325), (22205, 908245), (28925, 697237), (51025, 395249), (57733, 349325), (69865, 288665), (111025, 181649)]