18935120

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6397}}^1$

素因数の和:6447

約数の個数: 40

約数和(自身を含む): 45221064

約数和(自身を除く): 26285944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 6397, 12794, 25588, 31985, 51176, 63970, 102352, 127940, 236689, 255880, 473378, 511760, 946756, 1183445, 1893512, 2366890, 3787024, 4733780, 9467560, 18935120]

約数ペア:

[(1, 18935120), (2, 9467560), (4, 4733780), (5, 3787024), (8, 2366890), (10, 1893512), (16, 1183445), (20, 946756), (37, 511760), (40, 473378), (74, 255880), (80, 236689), (148, 127940), (185, 102352), (296, 63970), (370, 51176), (592, 31985), (740, 25588), (1480, 12794), (2960, 6397)]