199239160

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{21751}}^1$

素因数の和:21991

約数の個数: 32

約数和(自身を含む): 450266400

約数和(自身を除く): 251027240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 916, 1145, 1832, 2290, 4580, 9160, 21751, 43502, 87004, 108755, 174008, 217510, 435020, 870040, 4980979, 9961958, 19923916, 24904895, 39847832, 49809790, 99619580, 199239160]

約数ペア:

[(1, 199239160), (2, 99619580), (4, 49809790), (5, 39847832), (8, 24904895), (10, 19923916), (20, 9961958), (40, 4980979), (229, 870040), (458, 435020), (916, 217510), (1145, 174008), (1832, 108755), (2290, 87004), (4580, 43502), (9160, 21751)]