19990290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7487}}^1$

素因数の和:7586

約数の個数: 32

約数和(自身を含む): 48522240

約数和(自身を除く): 28531950

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 89, 178, 267, 445, 534, 890, 1335, 2670, 7487, 14974, 22461, 37435, 44922, 74870, 112305, 224610, 666343, 1332686, 1999029, 3331715, 3998058, 6663430, 9995145, 19990290]

約数ペア:

[(1, 19990290), (2, 9995145), (3, 6663430), (5, 3998058), (6, 3331715), (10, 1999029), (15, 1332686), (30, 666343), (89, 224610), (178, 112305), (267, 74870), (445, 44922), (534, 37435), (890, 22461), (1335, 14974), (2670, 7487)]