85278915

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{661}}^1$

素因数の和:780

約数の個数: 48

約数和(自身を含む): 153668736

約数和(自身を除く): 68389821

約数列:

[1, 3, 5, 9, 15, 45, 47, 61, 141, 183, 235, 305, 423, 549, 661, 705, 915, 1983, 2115, 2745, 2867, 3305, 5949, 8601, 9915, 14335, 25803, 29745, 31067, 40321, 43005, 93201, 120963, 129015, 155335, 201605, 279603, 362889, 466005, 604815, 1398015, 1814445, 1895087, 5685261, 9475435, 17055783, 28426305, 85278915]

約数ペア:

[(1, 85278915), (3, 28426305), (5, 17055783), (9, 9475435), (15, 5685261), (45, 1895087), (47, 1814445), (61, 1398015), (141, 604815), (183, 466005), (235, 362889), (305, 279603), (423, 201605), (549, 155335), (661, 129015), (705, 120963), (915, 93201), (1983, 43005), (2115, 40321), (2745, 31067), (2867, 29745), (3305, 25803), (5949, 14335), (8601, 9915)]