20338880

素因数分解:

$2^6\times 5^1\times {\mathrm{63559}}^1$

素因数の和:63576

約数の個数: 28

約数和(自身を含む): 48432720

約数和(自身を除く): 28093840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 63559, 127118, 254236, 317795, 508472, 635590, 1016944, 1271180, 2033888, 2542360, 4067776, 5084720, 10169440, 20338880]

約数ペア:

[(1, 20338880), (2, 10169440), (4, 5084720), (5, 4067776), (8, 2542360), (10, 2033888), (16, 1271180), (20, 1016944), (32, 635590), (40, 508472), (64, 317795), (80, 254236), (160, 127118), (320, 63559)]