978889160

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{70121}}^1$

素因数の和:70481

約数の個数: 32

約数和(自身を含む): 2208843000

約数和(自身を除く): 1229953840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1396, 1745, 2792, 3490, 6980, 13960, 70121, 140242, 280484, 350605, 560968, 701210, 1402420, 2804840, 24472229, 48944458, 97888916, 122361145, 195777832, 244722290, 489444580, 978889160]

約数ペア:

[(1, 978889160), (2, 489444580), (4, 244722290), (5, 195777832), (8, 122361145), (10, 97888916), (20, 48944458), (40, 24472229), (349, 2804840), (698, 1402420), (1396, 701210), (1745, 560968), (2792, 350605), (3490, 280484), (6980, 140242), (13960, 70121)]