289561840

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{35141}}^1$

素因数の和:35257

約数の個数: 40

約数和(自身を含む): 679786848

約数和(自身を除く): 390225008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 35141, 70282, 140564, 175705, 281128, 351410, 562256, 702820, 1405640, 2811280, 3619523, 7239046, 14478092, 18097615, 28956184, 36195230, 57912368, 72390460, 144780920, 289561840]

約数ペア:

[(1, 289561840), (2, 144780920), (4, 72390460), (5, 57912368), (8, 36195230), (10, 28956184), (16, 18097615), (20, 14478092), (40, 7239046), (80, 3619523), (103, 2811280), (206, 1405640), (412, 702820), (515, 562256), (824, 351410), (1030, 281128), (1648, 175705), (2060, 140564), (4120, 70282), (8240, 35141)]