20268400

素因数分解:

$2^4\times 5^2\times {\mathrm{50671}}^1$

素因数の和:50689

約数の個数: 30

約数和(自身を含む): 48695792

約数和(自身を除く): 28427392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 50671, 101342, 202684, 253355, 405368, 506710, 810736, 1013420, 1266775, 2026840, 2533550, 4053680, 5067100, 10134200, 20268400]

約数ペア:

[(1, 20268400), (2, 10134200), (4, 5067100), (5, 4053680), (8, 2533550), (10, 2026840), (16, 1266775), (20, 1013420), (25, 810736), (40, 506710), (50, 405368), (80, 253355), (100, 202684), (200, 101342), (400, 50671)]