31005160

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{2221}}^1$

素因数の和:2581

約数の個数: 32

約数和(自身を含む): 69993000

約数和(自身を除く): 38987840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1396, 1745, 2221, 2792, 3490, 4442, 6980, 8884, 11105, 13960, 17768, 22210, 44420, 88840, 775129, 1550258, 3100516, 3875645, 6201032, 7751290, 15502580, 31005160]

約数ペア:

[(1, 31005160), (2, 15502580), (4, 7751290), (5, 6201032), (8, 3875645), (10, 3100516), (20, 1550258), (40, 775129), (349, 88840), (698, 44420), (1396, 22210), (1745, 17768), (2221, 13960), (2792, 11105), (3490, 8884), (4442, 6980)]