89819990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{1723}}^1$

素因数の和:2144

約数の個数: 32

約数和(自身を含む): 174648096

約数和(自身を除く): 84828106

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 401, 802, 1723, 2005, 3446, 4010, 5213, 8615, 10426, 17230, 22399, 26065, 44798, 52130, 111995, 223990, 690923, 1381846, 3454615, 6909230, 8981999, 17963998, 44909995, 89819990]

約数ペア:

[(1, 89819990), (2, 44909995), (5, 17963998), (10, 8981999), (13, 6909230), (26, 3454615), (65, 1381846), (130, 690923), (401, 223990), (802, 111995), (1723, 52130), (2005, 44798), (3446, 26065), (4010, 22399), (5213, 17230), (8615, 10426)]