20264320

素因数分解:

$2^7\times 5^1\times {\mathrm{31663}}^1$

素因数の和:31682

約数の個数: 32

約数和(自身を含む): 48445920

約数和(自身を除く): 28181600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31663, 63326, 126652, 158315, 253304, 316630, 506608, 633260, 1013216, 1266520, 2026432, 2533040, 4052864, 5066080, 10132160, 20264320]

約数ペア:

[(1, 20264320), (2, 10132160), (4, 5066080), (5, 4052864), (8, 2533040), (10, 2026432), (16, 1266520), (20, 1013216), (32, 633260), (40, 506608), (64, 316630), (80, 253304), (128, 158315), (160, 126652), (320, 63326), (640, 31663)]