664580

素因数分解:

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

素因数の和:164

約数の個数: 48

約数和(自身を含む): 1645056

約数和(自身を除く): 980476

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 101, 140, 188, 202, 235, 329, 404, 470, 505, 658, 707, 940, 1010, 1316, 1414, 1645, 2020, 2828, 3290, 3535, 4747, 6580, 7070, 9494, 14140, 18988, 23735, 33229, 47470, 66458, 94940, 132916, 166145, 332290, 664580]

約数ペア:

[(1, 664580), (2, 332290), (4, 166145), (5, 132916), (7, 94940), (10, 66458), (14, 47470), (20, 33229), (28, 23735), (35, 18988), (47, 14140), (70, 9494), (94, 7070), (101, 6580), (140, 4747), (188, 3535), (202, 3290), (235, 2828), (329, 2020), (404, 1645), (470, 1414), (505, 1316), (658, 1010), (707, 940)]