72028400

素因数分解:

$2^4\times 5^2\times {\mathrm{180071}}^1$

素因数の和:180089

約数の個数: 30

約数和(自身を含む): 173049192

約数和(自身を除く): 101020792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 180071, 360142, 720284, 900355, 1440568, 1800710, 2881136, 3601420, 4501775, 7202840, 9003550, 14405680, 18007100, 36014200, 72028400]

約数ペア:

[(1, 72028400), (2, 36014200), (4, 18007100), (5, 14405680), (8, 9003550), (10, 7202840), (16, 4501775), (20, 3601420), (25, 2881136), (40, 1800710), (50, 1440568), (80, 900355), (100, 720284), (200, 360142), (400, 180071)]