72122800

素因数分解:

$2^4\times 5^2\times {\mathrm{180307}}^1$

素因数の和:180325

約数の個数: 30

約数和(自身を含む): 173275988

約数和(自身を除く): 101153188

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 180307, 360614, 721228, 901535, 1442456, 1803070, 2884912, 3606140, 4507675, 7212280, 9015350, 14424560, 18030700, 36061400, 72122800]

約数ペア:

[(1, 72122800), (2, 36061400), (4, 18030700), (5, 14424560), (8, 9015350), (10, 7212280), (16, 4507675), (20, 3606140), (25, 2884912), (40, 1803070), (50, 1442456), (80, 901535), (100, 721228), (200, 360614), (400, 180307)]