28202800

素因数分解:

$2^4\times 5^2\times {\mathrm{70507}}^1$

素因数の和:70525

約数の個数: 30

約数和(自身を含む): 67758188

約数和(自身を除く): 39555388

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 70507, 141014, 282028, 352535, 564056, 705070, 1128112, 1410140, 1762675, 2820280, 3525350, 5640560, 7050700, 14101400, 28202800]

約数ペア:

[(1, 28202800), (2, 14101400), (4, 7050700), (5, 5640560), (8, 3525350), (10, 2820280), (16, 1762675), (20, 1410140), (25, 1128112), (40, 705070), (50, 564056), (80, 352535), (100, 282028), (200, 141014), (400, 70507)]