81761655

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{4703}}^1$

素因数の和:4791

約数の個数: 32

約数和(自身を含む): 139991040

約数和(自身を除く): 58229385

約数列:

[1, 3, 5, 15, 19, 57, 61, 95, 183, 285, 305, 915, 1159, 3477, 4703, 5795, 14109, 17385, 23515, 70545, 89357, 268071, 286883, 446785, 860649, 1340355, 1434415, 4303245, 5450777, 16352331, 27253885, 81761655]

約数ペア:

[(1, 81761655), (3, 27253885), (5, 16352331), (15, 5450777), (19, 4303245), (57, 1434415), (61, 1340355), (95, 860649), (183, 446785), (285, 286883), (305, 268071), (915, 89357), (1159, 70545), (3477, 23515), (4703, 17385), (5795, 14109)]