204790640

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{14143}}^1$

素因数の和:14337

約数の個数: 40

約数和(自身を含む): 478802688

約数和(自身を除く): 274012048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1448, 1810, 2896, 3620, 7240, 14143, 14480, 28286, 56572, 70715, 113144, 141430, 226288, 282860, 565720, 1131440, 2559883, 5119766, 10239532, 12799415, 20479064, 25598830, 40958128, 51197660, 102395320, 204790640]

約数ペア:

[(1, 204790640), (2, 102395320), (4, 51197660), (5, 40958128), (8, 25598830), (10, 20479064), (16, 12799415), (20, 10239532), (40, 5119766), (80, 2559883), (181, 1131440), (362, 565720), (724, 282860), (905, 226288), (1448, 141430), (1810, 113144), (2896, 70715), (3620, 56572), (7240, 28286), (14143, 14480)]