20449770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1999}}^1$

素因数の和:2051

約数の個数: 64

約数和(自身を含む): 55296000

約数和(自身を除く): 34846230

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 31, 33, 55, 62, 66, 93, 110, 155, 165, 186, 310, 330, 341, 465, 682, 930, 1023, 1705, 1999, 2046, 3410, 3998, 5115, 5997, 9995, 10230, 11994, 19990, 21989, 29985, 43978, 59970, 61969, 65967, 109945, 123938, 131934, 185907, 219890, 309845, 329835, 371814, 619690, 659670, 681659, 929535, 1363318, 1859070, 2044977, 3408295, 4089954, 6816590, 10224885, 20449770]

約数ペア:

[(1, 20449770), (2, 10224885), (3, 6816590), (5, 4089954), (6, 3408295), (10, 2044977), (11, 1859070), (15, 1363318), (22, 929535), (30, 681659), (31, 659670), (33, 619690), (55, 371814), (62, 329835), (66, 309845), (93, 219890), (110, 185907), (155, 131934), (165, 123938), (186, 109945), (310, 65967), (330, 61969), (341, 59970), (465, 43978), (682, 29985), (930, 21989), (1023, 19990), (1705, 11994), (1999, 10230), (2046, 9995), (3410, 5997), (3998, 5115)]