201520990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{31051}}^1$

素因数の和:31128

約数の個数: 32

約数和(自身を含む): 402433920

約数和(自身を除く): 200912930

約数列:

[1, 2, 5, 10, 11, 22, 55, 59, 110, 118, 295, 590, 649, 1298, 3245, 6490, 31051, 62102, 155255, 310510, 341561, 683122, 1707805, 1832009, 3415610, 3664018, 9160045, 18320090, 20152099, 40304198, 100760495, 201520990]

約数ペア:

[(1, 201520990), (2, 100760495), (5, 40304198), (10, 20152099), (11, 18320090), (22, 9160045), (55, 3664018), (59, 3415610), (110, 1832009), (118, 1707805), (295, 683122), (590, 341561), (649, 310510), (1298, 155255), (3245, 62102), (6490, 31051)]