12896920

素因数分解:

$2^3\times 5^1\times {\mathrm{503}}^1\times {\mathrm{641}}^1$

素因数の和:1155

約数の個数: 32

約数和(自身を含む): 29121120

約数和(自身を除く): 16224200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503, 641, 1006, 1282, 2012, 2515, 2564, 3205, 4024, 5030, 5128, 6410, 10060, 12820, 20120, 25640, 322423, 644846, 1289692, 1612115, 2579384, 3224230, 6448460, 12896920]

約数ペア:

[(1, 12896920), (2, 6448460), (4, 3224230), (5, 2579384), (8, 1612115), (10, 1289692), (20, 644846), (40, 322423), (503, 25640), (641, 20120), (1006, 12820), (1282, 10060), (2012, 6410), (2515, 5128), (2564, 5030), (3205, 4024)]