28015505

素因数分解:

$5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{2789}}^1$

素因数の和:2849

約数の個数: 24

約数和(自身を含む): 40075560

約数和(自身を除く): 12060055

約数列:

[1, 5, 7, 35, 41, 49, 205, 245, 287, 1435, 2009, 2789, 10045, 13945, 19523, 97615, 114349, 136661, 571745, 683305, 800443, 4002215, 5603101, 28015505]

約数ペア:

[(1, 28015505), (5, 5603101), (7, 4002215), (35, 800443), (41, 683305), (49, 571745), (205, 136661), (245, 114349), (287, 97615), (1435, 19523), (2009, 13945), (2789, 10045)]