16780645

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{101}}^2$

素因数の和:261

約数の個数: 24

約数和(自身を含む): 23738112

約数和(自身を除く): 6957467

約数列:

[1, 5, 7, 35, 47, 101, 235, 329, 505, 707, 1645, 3535, 4747, 10201, 23735, 33229, 51005, 71407, 166145, 357035, 479447, 2397235, 3356129, 16780645]

約数ペア:

[(1, 16780645), (5, 3356129), (7, 2397235), (35, 479447), (47, 357035), (101, 166145), (235, 71407), (329, 51005), (505, 33229), (707, 23735), (1645, 10201), (3535, 4747)]