20816100

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{101}}^1\times {\mathrm{229}}^1$

素因数の和:350

約数の個数: 108

約数和(自身を含む): 66180660

約数和(自身を除く): 45364560

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 101, 150, 180, 202, 225, 229, 300, 303, 404, 450, 458, 505, 606, 687, 900, 909, 916, 1010, 1145, 1212, 1374, 1515, 1818, 2020, 2061, 2290, 2525, 2748, 3030, 3435, 3636, 4122, 4545, 4580, 5050, 5725, 6060, 6870, 7575, 8244, 9090, 10100, 10305, 11450, 13740, 15150, 17175, 18180, 20610, 22725, 22900, 23129, 30300, 34350, 41220, 45450, 46258, 51525, 68700, 69387, 90900, 92516, 103050, 115645, 138774, 206100, 208161, 231290, 277548, 346935, 416322, 462580, 578225, 693870, 832644, 1040805, 1156450, 1387740, 1734675, 2081610, 2312900, 3469350, 4163220, 5204025, 6938700, 10408050, 20816100]

約数ペア:

[(1, 20816100), (2, 10408050), (3, 6938700), (4, 5204025), (5, 4163220), (6, 3469350), (9, 2312900), (10, 2081610), (12, 1734675), (15, 1387740), (18, 1156450), (20, 1040805), (25, 832644), (30, 693870), (36, 578225), (45, 462580), (50, 416322), (60, 346935), (75, 277548), (90, 231290), (100, 208161), (101, 206100), (150, 138774), (180, 115645), (202, 103050), (225, 92516), (229, 90900), (300, 69387), (303, 68700), (404, 51525), (450, 46258), (458, 45450), (505, 41220), (606, 34350), (687, 30300), (900, 23129), (909, 22900), (916, 22725), (1010, 20610), (1145, 18180), (1212, 17175), (1374, 15150), (1515, 13740), (1818, 11450), (2020, 10305), (2061, 10100), (2290, 9090), (2525, 8244), (2748, 7575), (3030, 6870), (3435, 6060), (3636, 5725), (4122, 5050), (4545, 4580)]