45640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{163}}^1$

素因数の和:181

約数の個数: 32

約数和(自身を含む): 118080

約数和(自身を除く): 72440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 163, 280, 326, 652, 815, 1141, 1304, 1630, 2282, 3260, 4564, 5705, 6520, 9128, 11410, 22820, 45640]

約数ペア:

[(1, 45640), (2, 22820), (4, 11410), (5, 9128), (7, 6520), (8, 5705), (10, 4564), (14, 3260), (20, 2282), (28, 1630), (35, 1304), (40, 1141), (56, 815), (70, 652), (140, 326), (163, 280)]