289308305

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{1693}}^1$

素因数の和:1961

約数の個数: 32

約数和(自身を含む): 409812480

約数和(自身を除く): 120504175

約数列:

[1, 5, 11, 13, 55, 65, 143, 239, 715, 1195, 1693, 2629, 3107, 8465, 13145, 15535, 18623, 22009, 34177, 93115, 110045, 170885, 242099, 404627, 1210495, 2023135, 4450897, 5260151, 22254485, 26300755, 57861661, 289308305]

約数ペア:

[(1, 289308305), (5, 57861661), (11, 26300755), (13, 22254485), (55, 5260151), (65, 4450897), (143, 2023135), (239, 1210495), (715, 404627), (1195, 242099), (1693, 170885), (2629, 110045), (3107, 93115), (8465, 34177), (13145, 22009), (15535, 18623)]