20227880

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{3221}}^1$

素因数の和:3389

約数の個数: 32

約数和(自身を含む): 45816840

約数和(自身を除く): 25588960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 3221, 6280, 6442, 12884, 16105, 25768, 32210, 64420, 128840, 505697, 1011394, 2022788, 2528485, 4045576, 5056970, 10113940, 20227880]

約数ペア:

[(1, 20227880), (2, 10113940), (4, 5056970), (5, 4045576), (8, 2528485), (10, 2022788), (20, 1011394), (40, 505697), (157, 128840), (314, 64420), (628, 32210), (785, 25768), (1256, 16105), (1570, 12884), (3140, 6442), (3221, 6280)]