20028540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1109}}^1$

素因数の和:1171

約数の個数: 96

約数和(自身を含む): 65640960

約数和(自身を除く): 45612420

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 60, 70, 84, 86, 105, 129, 140, 172, 210, 215, 258, 301, 420, 430, 516, 602, 645, 860, 903, 1109, 1204, 1290, 1505, 1806, 2218, 2580, 3010, 3327, 3612, 4436, 4515, 5545, 6020, 6654, 7763, 9030, 11090, 13308, 15526, 16635, 18060, 22180, 23289, 31052, 33270, 38815, 46578, 47687, 66540, 77630, 93156, 95374, 116445, 143061, 155260, 190748, 232890, 238435, 286122, 333809, 465780, 476870, 572244, 667618, 715305, 953740, 1001427, 1335236, 1430610, 1669045, 2002854, 2861220, 3338090, 4005708, 5007135, 6676180, 10014270, 20028540]

約数ペア:

[(1, 20028540), (2, 10014270), (3, 6676180), (4, 5007135), (5, 4005708), (6, 3338090), (7, 2861220), (10, 2002854), (12, 1669045), (14, 1430610), (15, 1335236), (20, 1001427), (21, 953740), (28, 715305), (30, 667618), (35, 572244), (42, 476870), (43, 465780), (60, 333809), (70, 286122), (84, 238435), (86, 232890), (105, 190748), (129, 155260), (140, 143061), (172, 116445), (210, 95374), (215, 93156), (258, 77630), (301, 66540), (420, 47687), (430, 46578), (516, 38815), (602, 33270), (645, 31052), (860, 23289), (903, 22180), (1109, 18060), (1204, 16635), (1290, 15526), (1505, 13308), (1806, 11090), (2218, 9030), (2580, 7763), (3010, 6654), (3327, 6020), (3612, 5545), (4436, 4515)]