81386520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{678221}}^1$

素因数の和:678235

約数の個数: 32

約数和(自身を含む): 244159920

約数和(自身を除く): 162773400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 678221, 1356442, 2034663, 2712884, 3391105, 4069326, 5425768, 6782210, 8138652, 10173315, 13564420, 16277304, 20346630, 27128840, 40693260, 81386520]

約数ペア:

[(1, 81386520), (2, 40693260), (3, 27128840), (4, 20346630), (5, 16277304), (6, 13564420), (8, 10173315), (10, 8138652), (12, 6782210), (15, 5425768), (20, 4069326), (24, 3391105), (30, 2712884), (40, 2034663), (60, 1356442), (120, 678221)]