18735320

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12659}}^1$

素因数の和:12707

約数の個数: 32

約数和(自身を含む): 43297200

約数和(自身を除く): 24561880

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 12659, 25318, 50636, 63295, 101272, 126590, 253180, 468383, 506360, 936766, 1873532, 2341915, 3747064, 4683830, 9367660, 18735320]

約数ペア:

[(1, 18735320), (2, 9367660), (4, 4683830), (5, 3747064), (8, 2341915), (10, 1873532), (20, 936766), (37, 506360), (40, 468383), (74, 253180), (148, 126590), (185, 101272), (296, 63295), (370, 50636), (740, 25318), (1480, 12659)]