208861520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{53281}}^1$

素因数の和:53308

約数の個数: 60

約数和(自身を含む): 564895764

約数和(自身を除く): 356034244

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 53281, 106562, 213124, 266405, 372967, 426248, 532810, 745934, 852496, 1065620, 1491868, 1864835, 2131240, 2610769, 2983736, 3729670, 4262480, 5221538, 5967472, 7459340, 10443076, 13053845, 14918680, 20886152, 26107690, 29837360, 41772304, 52215380, 104430760, 208861520]

約数ペア:

[(1, 208861520), (2, 104430760), (4, 52215380), (5, 41772304), (7, 29837360), (8, 26107690), (10, 20886152), (14, 14918680), (16, 13053845), (20, 10443076), (28, 7459340), (35, 5967472), (40, 5221538), (49, 4262480), (56, 3729670), (70, 2983736), (80, 2610769), (98, 2131240), (112, 1864835), (140, 1491868), (196, 1065620), (245, 852496), (280, 745934), (392, 532810), (490, 426248), (560, 372967), (784, 266405), (980, 213124), (1960, 106562), (3920, 53281)]