407600

素因数分解:

$2^4\times 5^2\times {\mathrm{1019}}^1$

素因数の和:1037

約数の個数: 30

約数和(自身を含む): 980220

約数和(自身を除く): 572620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 1019, 2038, 4076, 5095, 8152, 10190, 16304, 20380, 25475, 40760, 50950, 81520, 101900, 203800, 407600]

約数ペア:

[(1, 407600), (2, 203800), (4, 101900), (5, 81520), (8, 50950), (10, 40760), (16, 25475), (20, 20380), (25, 16304), (40, 10190), (50, 8152), (80, 5095), (100, 4076), (200, 2038), (400, 1019)]