311921260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{318287}}^1$

素因数の和:318310

約数の個数: 36

約数和(自身を含む): 761981472

約数和(自身を除く): 450060212

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 318287, 636574, 1273148, 1591435, 2228009, 3182870, 4456018, 6365740, 8912036, 11140045, 15596063, 22280090, 31192126, 44560180, 62384252, 77980315, 155960630, 311921260]

約数ペア:

[(1, 311921260), (2, 155960630), (4, 77980315), (5, 62384252), (7, 44560180), (10, 31192126), (14, 22280090), (20, 15596063), (28, 11140045), (35, 8912036), (49, 6365740), (70, 4456018), (98, 3182870), (140, 2228009), (196, 1591435), (245, 1273148), (490, 636574), (980, 318287)]