13630820

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{1987}}^1$

素因数の和:2017

約数の個数: 48

約数和(自身を含む): 33398400

約数和(自身を除く): 19767580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 1987, 3430, 3974, 6860, 7948, 9935, 13909, 19870, 27818, 39740, 55636, 69545, 97363, 139090, 194726, 278180, 389452, 486815, 681541, 973630, 1363082, 1947260, 2726164, 3407705, 6815410, 13630820]

約数ペア:

[(1, 13630820), (2, 6815410), (4, 3407705), (5, 2726164), (7, 1947260), (10, 1363082), (14, 973630), (20, 681541), (28, 486815), (35, 389452), (49, 278180), (70, 194726), (98, 139090), (140, 97363), (196, 69545), (245, 55636), (343, 39740), (490, 27818), (686, 19870), (980, 13909), (1372, 9935), (1715, 7948), (1987, 6860), (3430, 3974)]