81782520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{681521}}^1$

素因数の和:681535

約数の個数: 32

約数和(自身を含む): 245347920

約数和(自身を除く): 163565400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 681521, 1363042, 2044563, 2726084, 3407605, 4089126, 5452168, 6815210, 8178252, 10222815, 13630420, 16356504, 20445630, 27260840, 40891260, 81782520]

約数ペア:

[(1, 81782520), (2, 40891260), (3, 27260840), (4, 20445630), (5, 16356504), (6, 13630420), (8, 10222815), (10, 8178252), (12, 6815210), (15, 5452168), (20, 4089126), (24, 3407605), (30, 2726084), (40, 2044563), (60, 1363042), (120, 681521)]