12940040

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{6883}}^1$

素因数の和:6941

約数の個数: 32

約数和(自身を含む): 29738880

約数和(自身を除く): 16798840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 6883, 13766, 27532, 34415, 55064, 68830, 137660, 275320, 323501, 647002, 1294004, 1617505, 2588008, 3235010, 6470020, 12940040]

約数ペア:

[(1, 12940040), (2, 6470020), (4, 3235010), (5, 2588008), (8, 1617505), (10, 1294004), (20, 647002), (40, 323501), (47, 275320), (94, 137660), (188, 68830), (235, 55064), (376, 34415), (470, 27532), (940, 13766), (1880, 6883)]