201218620

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{76801}}^1$

素因数の和:76941

約数の個数: 24

約数和(自身を含む): 425790288

約数和(自身を除く): 224571668

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 76801, 153602, 307204, 384005, 768010, 1536020, 10060931, 20121862, 40243724, 50304655, 100609310, 201218620]

約数ペア:

[(1, 201218620), (2, 100609310), (4, 50304655), (5, 40243724), (10, 20121862), (20, 10060931), (131, 1536020), (262, 768010), (524, 384005), (655, 307204), (1310, 153602), (2620, 76801)]