90172400

素因数分解:

$2^4\times 5^2\times {\mathrm{225431}}^1$

素因数の和:225449

約数の個数: 30

約数和(自身を含む): 216640152

約数和(自身を除く): 126467752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 225431, 450862, 901724, 1127155, 1803448, 2254310, 3606896, 4508620, 5635775, 9017240, 11271550, 18034480, 22543100, 45086200, 90172400]

約数ペア:

[(1, 90172400), (2, 45086200), (4, 22543100), (5, 18034480), (8, 11271550), (10, 9017240), (16, 5635775), (20, 4508620), (25, 3606896), (40, 2254310), (50, 1803448), (80, 1127155), (100, 901724), (200, 450862), (400, 225431)]