401020090

素因数分解:

$2^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{269141}}^1$

素因数の和:269297

約数の個数: 16

約数和(自身を含む): 726683400

約数和(自身を除く): 325663310

約数列:

[1, 2, 5, 10, 149, 298, 745, 1490, 269141, 538282, 1345705, 2691410, 40102009, 80204018, 200510045, 401020090]

約数ペア:

[(1, 401020090), (2, 200510045), (5, 80204018), (10, 40102009), (149, 2691410), (298, 1345705), (745, 538282), (1490, 269141)]