20678130

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20887}}^1$

素因数の和:20911

約数の個数: 48

約数和(自身を含む): 58653504

約数和(自身を除く): 37975374

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 20887, 41774, 62661, 104435, 125322, 187983, 208870, 229757, 313305, 375966, 459514, 626610, 689271, 939915, 1148785, 1378542, 1879830, 2067813, 2297570, 3446355, 4135626, 6892710, 10339065, 20678130]

約数ペア:

[(1, 20678130), (2, 10339065), (3, 6892710), (5, 4135626), (6, 3446355), (9, 2297570), (10, 2067813), (11, 1879830), (15, 1378542), (18, 1148785), (22, 939915), (30, 689271), (33, 626610), (45, 459514), (55, 375966), (66, 313305), (90, 229757), (99, 208870), (110, 187983), (165, 125322), (198, 104435), (330, 62661), (495, 41774), (990, 20887)]