20936180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{443}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 46992960

約数和(自身を除く): 26056780

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 139, 170, 278, 340, 443, 556, 695, 886, 1390, 1772, 2215, 2363, 2780, 4430, 4726, 7531, 8860, 9452, 11815, 15062, 23630, 30124, 37655, 47260, 61577, 75310, 123154, 150620, 246308, 307885, 615770, 1046809, 1231540, 2093618, 4187236, 5234045, 10468090, 20936180]

約数ペア:

[(1, 20936180), (2, 10468090), (4, 5234045), (5, 4187236), (10, 2093618), (17, 1231540), (20, 1046809), (34, 615770), (68, 307885), (85, 246308), (139, 150620), (170, 123154), (278, 75310), (340, 61577), (443, 47260), (556, 37655), (695, 30124), (886, 23630), (1390, 15062), (1772, 11815), (2215, 9452), (2363, 8860), (2780, 7531), (4430, 4726)]