2580450005

素因数分解:

$5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{256889}}^1$

素因数の和:256949

約数の個数: 24

約数和(自身を含む): 3689967960

約数和(自身を除く): 1109517955

約数列:

[1, 5, 7, 35, 41, 49, 205, 245, 287, 1435, 2009, 10045, 256889, 1284445, 1798223, 8991115, 10532449, 12587561, 52662245, 62937805, 73727143, 368635715, 516090001, 2580450005]

約数ペア:

[(1, 2580450005), (5, 516090001), (7, 368635715), (35, 73727143), (41, 62937805), (49, 52662245), (205, 12587561), (245, 10532449), (287, 8991115), (1435, 1798223), (2009, 1284445), (10045, 256889)]