217267480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{319511}}^1$

素因数の和:319539

約数の個数: 32

約数和(自身を含む): 517609440

約数和(自身を除く): 300341960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 319511, 639022, 1278044, 1597555, 2556088, 3195110, 5431687, 6390220, 10863374, 12780440, 21726748, 27158435, 43453496, 54316870, 108633740, 217267480]

約数ペア:

[(1, 217267480), (2, 108633740), (4, 54316870), (5, 43453496), (8, 27158435), (10, 21726748), (17, 12780440), (20, 10863374), (34, 6390220), (40, 5431687), (68, 3195110), (85, 2556088), (136, 1597555), (170, 1278044), (340, 639022), (680, 319511)]