20609325

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{757}}^1$

素因数の和:795

約数の個数: 54

約数和(自身を含む): 40628042

約数和(自身を除く): 20018717

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 121, 165, 225, 275, 363, 495, 605, 757, 825, 1089, 1815, 2271, 2475, 3025, 3785, 5445, 6813, 8327, 9075, 11355, 18925, 24981, 27225, 34065, 41635, 56775, 74943, 91597, 124905, 170325, 208175, 274791, 374715, 457985, 624525, 824373, 1373955, 1873575, 2289925, 4121865, 6869775, 20609325]

約数ペア:

[(1, 20609325), (3, 6869775), (5, 4121865), (9, 2289925), (11, 1873575), (15, 1373955), (25, 824373), (33, 624525), (45, 457985), (55, 374715), (75, 274791), (99, 208175), (121, 170325), (165, 124905), (225, 91597), (275, 74943), (363, 56775), (495, 41635), (605, 34065), (757, 27225), (825, 24981), (1089, 18925), (1815, 11355), (2271, 9075), (2475, 8327), (3025, 6813), (3785, 5445)]