68816720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{122887}}^1$

素因数の和:122907

約数の個数: 40

約数和(自身を含む): 182857344

約数和(自身を除く): 114040624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 122887, 245774, 491548, 614435, 860209, 983096, 1228870, 1720418, 1966192, 2457740, 3440836, 4301045, 4915480, 6881672, 8602090, 9830960, 13763344, 17204180, 34408360, 68816720]

約数ペア:

[(1, 68816720), (2, 34408360), (4, 17204180), (5, 13763344), (7, 9830960), (8, 8602090), (10, 6881672), (14, 4915480), (16, 4301045), (20, 3440836), (28, 2457740), (35, 1966192), (40, 1720418), (56, 1228870), (70, 983096), (80, 860209), (112, 614435), (140, 491548), (280, 245774), (560, 122887)]