83680400

素因数分解:

$2^4\times 5^2\times {\mathrm{209201}}^1$

素因数の和:209219

約数の個数: 30

約数和(自身を含む): 201043122

約数和(自身を除く): 117362722

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 209201, 418402, 836804, 1046005, 1673608, 2092010, 3347216, 4184020, 5230025, 8368040, 10460050, 16736080, 20920100, 41840200, 83680400]

約数ペア:

[(1, 83680400), (2, 41840200), (4, 20920100), (5, 16736080), (8, 10460050), (10, 8368040), (16, 5230025), (20, 4184020), (25, 3347216), (40, 2092010), (50, 1673608), (80, 1046005), (100, 836804), (200, 418402), (400, 209201)]