18158470

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:421

約数の個数: 48

約数和(自身を含む): 36867600

約数和(自身を除く): 18709130

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 121, 215, 242, 349, 430, 473, 605, 698, 946, 1210, 1745, 2365, 3490, 3839, 4730, 5203, 7678, 10406, 15007, 19195, 26015, 30014, 38390, 42229, 52030, 75035, 84458, 150070, 165077, 211145, 330154, 422290, 825385, 1650770, 1815847, 3631694, 9079235, 18158470]

約数ペア:

[(1, 18158470), (2, 9079235), (5, 3631694), (10, 1815847), (11, 1650770), (22, 825385), (43, 422290), (55, 330154), (86, 211145), (110, 165077), (121, 150070), (215, 84458), (242, 75035), (349, 52030), (430, 42229), (473, 38390), (605, 30014), (698, 26015), (946, 19195), (1210, 15007), (1745, 10406), (2365, 7678), (3490, 5203), (3839, 4730)]