66640490

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{307}}^1\times {\mathrm{443}}^1$

素因数の和:771

約数の個数: 48

約数和(自身を含む): 140307552

約数和(自身を除く): 73667062

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 307, 443, 490, 614, 886, 1535, 2149, 2215, 3070, 3101, 4298, 4430, 6202, 10745, 15043, 15505, 21490, 21707, 30086, 31010, 43414, 75215, 108535, 136001, 150430, 217070, 272002, 680005, 952007, 1360010, 1904014, 4760035, 6664049, 9520070, 13328098, 33320245, 66640490]

約数ペア:

[(1, 66640490), (2, 33320245), (5, 13328098), (7, 9520070), (10, 6664049), (14, 4760035), (35, 1904014), (49, 1360010), (70, 952007), (98, 680005), (245, 272002), (307, 217070), (443, 150430), (490, 136001), (614, 108535), (886, 75215), (1535, 43414), (2149, 31010), (2215, 30086), (3070, 21707), (3101, 21490), (4298, 15505), (4430, 15043), (6202, 10745)]