20787690

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8999}}^1$

素因数の和:9027

約数の個数: 64

約数和(自身を含む): 62208000

約数和(自身を除く): 41420310

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 66, 70, 77, 105, 110, 154, 165, 210, 231, 330, 385, 462, 770, 1155, 2310, 8999, 17998, 26997, 44995, 53994, 62993, 89990, 98989, 125986, 134985, 188979, 197978, 269970, 296967, 314965, 377958, 494945, 593934, 629930, 692923, 944895, 989890, 1385846, 1484835, 1889790, 2078769, 2969670, 3464615, 4157538, 6929230, 10393845, 20787690]

約数ペア:

[(1, 20787690), (2, 10393845), (3, 6929230), (5, 4157538), (6, 3464615), (7, 2969670), (10, 2078769), (11, 1889790), (14, 1484835), (15, 1385846), (21, 989890), (22, 944895), (30, 692923), (33, 629930), (35, 593934), (42, 494945), (55, 377958), (66, 314965), (70, 296967), (77, 269970), (105, 197978), (110, 188979), (154, 134985), (165, 125986), (210, 98989), (231, 89990), (330, 62993), (385, 53994), (462, 44995), (770, 26997), (1155, 17998), (2310, 8999)]