40392400

素因数分解:

$2^4\times 5^2\times {\mathrm{100981}}^1$

素因数の和:100999

約数の個数: 30

約数和(自身を含む): 97043702

約数和(自身を除く): 56651302

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 100981, 201962, 403924, 504905, 807848, 1009810, 1615696, 2019620, 2524525, 4039240, 5049050, 8078480, 10098100, 20196200, 40392400]

約数ペア:

[(1, 40392400), (2, 20196200), (4, 10098100), (5, 8078480), (8, 5049050), (10, 4039240), (16, 2524525), (20, 2019620), (25, 1615696), (40, 1009810), (50, 807848), (80, 504905), (100, 403924), (200, 201962), (400, 100981)]