2315440

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{281}}^1$

素因数の和:397

約数の個数: 40

約数和(自身を含む): 5455008

約数和(自身を除く): 3139568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 281, 412, 515, 562, 824, 1030, 1124, 1405, 1648, 2060, 2248, 2810, 4120, 4496, 5620, 8240, 11240, 22480, 28943, 57886, 115772, 144715, 231544, 289430, 463088, 578860, 1157720, 2315440]

約数ペア:

[(1, 2315440), (2, 1157720), (4, 578860), (5, 463088), (8, 289430), (10, 231544), (16, 144715), (20, 115772), (40, 57886), (80, 28943), (103, 22480), (206, 11240), (281, 8240), (412, 5620), (515, 4496), (562, 4120), (824, 2810), (1030, 2248), (1124, 2060), (1405, 1648)]