12961880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{193}}^1$

素因数の和:300

約数の個数: 64

約数和(自身を含む): 31008960

約数和(自身を除く): 18047080

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 73, 92, 115, 146, 184, 193, 230, 292, 365, 386, 460, 584, 730, 772, 920, 965, 1460, 1544, 1679, 1930, 2920, 3358, 3860, 4439, 6716, 7720, 8395, 8878, 13432, 14089, 16790, 17756, 22195, 28178, 33580, 35512, 44390, 56356, 67160, 70445, 88780, 112712, 140890, 177560, 281780, 324047, 563560, 648094, 1296188, 1620235, 2592376, 3240470, 6480940, 12961880]

約数ペア:

[(1, 12961880), (2, 6480940), (4, 3240470), (5, 2592376), (8, 1620235), (10, 1296188), (20, 648094), (23, 563560), (40, 324047), (46, 281780), (73, 177560), (92, 140890), (115, 112712), (146, 88780), (184, 70445), (193, 67160), (230, 56356), (292, 44390), (365, 35512), (386, 33580), (460, 28178), (584, 22195), (730, 17756), (772, 16790), (920, 14089), (965, 13432), (1460, 8878), (1544, 8395), (1679, 7720), (1930, 6716), (2920, 4439), (3358, 3860)]