18201200

素因数分解:

$2^4\times 5^2\times {\mathrm{45503}}^1$

素因数の和:45521

約数の個数: 30

約数和(自身を含む): 43729344

約数和(自身を除く): 25528144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 45503, 91006, 182012, 227515, 364024, 455030, 728048, 910060, 1137575, 1820120, 2275150, 3640240, 4550300, 9100600, 18201200]

約数ペア:

[(1, 18201200), (2, 9100600), (4, 4550300), (5, 3640240), (8, 2275150), (10, 1820120), (16, 1137575), (20, 910060), (25, 728048), (40, 455030), (50, 364024), (80, 227515), (100, 182012), (200, 91006), (400, 45503)]