20112540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{6841}}^1$

素因数の和:6867

約数の個数: 72

約数和(自身を含む): 65518992

約数和(自身を除く): 45406452

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 6841, 13682, 20523, 27364, 34205, 41046, 47887, 68410, 82092, 95774, 102615, 136820, 143661, 191548, 205230, 239435, 287322, 335209, 410460, 478870, 574644, 670418, 718305, 957740, 1005627, 1340836, 1436610, 1676045, 2011254, 2873220, 3352090, 4022508, 5028135, 6704180, 10056270, 20112540]

約数ペア:

[(1, 20112540), (2, 10056270), (3, 6704180), (4, 5028135), (5, 4022508), (6, 3352090), (7, 2873220), (10, 2011254), (12, 1676045), (14, 1436610), (15, 1340836), (20, 1005627), (21, 957740), (28, 718305), (30, 670418), (35, 574644), (42, 478870), (49, 410460), (60, 335209), (70, 287322), (84, 239435), (98, 205230), (105, 191548), (140, 143661), (147, 136820), (196, 102615), (210, 95774), (245, 82092), (294, 68410), (420, 47887), (490, 41046), (588, 34205), (735, 27364), (980, 20523), (1470, 13682), (2940, 6841)]