666690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:394

約数の個数: 32

約数和(自身を含む): 1627776

約数和(自身を除く): 961086

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 142, 213, 313, 355, 426, 626, 710, 939, 1065, 1565, 1878, 2130, 3130, 4695, 9390, 22223, 44446, 66669, 111115, 133338, 222230, 333345, 666690]

約数ペア:

[(1, 666690), (2, 333345), (3, 222230), (5, 133338), (6, 111115), (10, 66669), (15, 44446), (30, 22223), (71, 9390), (142, 4695), (213, 3130), (313, 2130), (355, 1878), (426, 1565), (626, 1065), (710, 939)]