81196155

素因数分解:

$3^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{4327}}^1$

素因数の和:4480

約数の個数: 32

約数和(自身を含む): 145420800

約数和(自身を除く): 64224645

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 139, 417, 695, 1251, 2085, 3753, 4327, 6255, 12981, 18765, 21635, 38943, 64905, 116829, 194715, 584145, 601453, 1804359, 3007265, 5413077, 9021795, 16239231, 27065385, 81196155]

約数ペア:

[(1, 81196155), (3, 27065385), (5, 16239231), (9, 9021795), (15, 5413077), (27, 3007265), (45, 1804359), (135, 601453), (139, 584145), (417, 194715), (695, 116829), (1251, 64905), (2085, 38943), (3753, 21635), (4327, 18765), (6255, 12981)]