80864840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{288803}}^1$

素因数の和:288821

約数の個数: 32

約数和(自身を含む): 207938880

約数和(自身を除く): 127074040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 288803, 577606, 1155212, 1444015, 2021621, 2310424, 2888030, 4043242, 5776060, 8086484, 10108105, 11552120, 16172968, 20216210, 40432420, 80864840]

約数ペア:

[(1, 80864840), (2, 40432420), (4, 20216210), (5, 16172968), (7, 11552120), (8, 10108105), (10, 8086484), (14, 5776060), (20, 4043242), (28, 2888030), (35, 2310424), (40, 2021621), (56, 1444015), (70, 1155212), (140, 577606), (280, 288803)]