8381560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{443}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 21098880

約数和(自身を除く): 12717320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 443, 473, 860, 886, 946, 1720, 1772, 1892, 2215, 2365, 3544, 3784, 4430, 4730, 4873, 8860, 9460, 9746, 17720, 18920, 19049, 19492, 24365, 38098, 38984, 48730, 76196, 95245, 97460, 152392, 190490, 194920, 209539, 380980, 419078, 761960, 838156, 1047695, 1676312, 2095390, 4190780, 8381560]

約数ペア:

[(1, 8381560), (2, 4190780), (4, 2095390), (5, 1676312), (8, 1047695), (10, 838156), (11, 761960), (20, 419078), (22, 380980), (40, 209539), (43, 194920), (44, 190490), (55, 152392), (86, 97460), (88, 95245), (110, 76196), (172, 48730), (215, 38984), (220, 38098), (344, 24365), (430, 19492), (440, 19049), (443, 18920), (473, 17720), (860, 9746), (886, 9460), (946, 8860), (1720, 4873), (1772, 4730), (1892, 4430), (2215, 3784), (2365, 3544)]