16980780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{7649}}^1$

素因数の和:7698

約数の個数: 48

約数和(自身を含む): 48837600

約数和(自身を除く): 31856820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 111, 148, 185, 222, 370, 444, 555, 740, 1110, 2220, 7649, 15298, 22947, 30596, 38245, 45894, 76490, 91788, 114735, 152980, 229470, 283013, 458940, 566026, 849039, 1132052, 1415065, 1698078, 2830130, 3396156, 4245195, 5660260, 8490390, 16980780]

約数ペア:

[(1, 16980780), (2, 8490390), (3, 5660260), (4, 4245195), (5, 3396156), (6, 2830130), (10, 1698078), (12, 1415065), (15, 1132052), (20, 849039), (30, 566026), (37, 458940), (60, 283013), (74, 229470), (111, 152980), (148, 114735), (185, 91788), (222, 76490), (370, 45894), (444, 38245), (555, 30596), (740, 22947), (1110, 15298), (2220, 7649)]