28751480

素因数分解:

$2^3\times 5^1\times {\mathrm{503}}^1\times {\mathrm{1429}}^1$

素因数の和:1943

約数の個数: 32

約数和(自身を含む): 64864800

約数和(自身を除く): 36113320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503, 1006, 1429, 2012, 2515, 2858, 4024, 5030, 5716, 7145, 10060, 11432, 14290, 20120, 28580, 57160, 718787, 1437574, 2875148, 3593935, 5750296, 7187870, 14375740, 28751480]

約数ペア:

[(1, 28751480), (2, 14375740), (4, 7187870), (5, 5750296), (8, 3593935), (10, 2875148), (20, 1437574), (40, 718787), (503, 57160), (1006, 28580), (1429, 20120), (2012, 14290), (2515, 11432), (2858, 10060), (4024, 7145), (5030, 5716)]