102708400

素因数分解:

$2^4\times 5^2\times {\mathrm{256771}}^1$

素因数の和:256789

約数の個数: 30

約数和(自身を含む): 246757892

約数和(自身を除く): 144049492

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 256771, 513542, 1027084, 1283855, 2054168, 2567710, 4108336, 5135420, 6419275, 10270840, 12838550, 20541680, 25677100, 51354200, 102708400]

約数ペア:

[(1, 102708400), (2, 51354200), (4, 25677100), (5, 20541680), (8, 12838550), (10, 10270840), (16, 6419275), (20, 5135420), (25, 4108336), (40, 2567710), (50, 2054168), (80, 1283855), (100, 1027084), (200, 513542), (400, 256771)]