8666320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{641}}^1$

素因数の和:680

約数の個数: 60

約数和(自身を含む): 21852396

約数和(自身を除く): 13186076

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 641, 676, 845, 1040, 1282, 1352, 1690, 2564, 2704, 3205, 3380, 5128, 6410, 6760, 8333, 10256, 12820, 13520, 16666, 25640, 33332, 41665, 51280, 66664, 83330, 108329, 133328, 166660, 216658, 333320, 433316, 541645, 666640, 866632, 1083290, 1733264, 2166580, 4333160, 8666320]

約数ペア:

[(1, 8666320), (2, 4333160), (4, 2166580), (5, 1733264), (8, 1083290), (10, 866632), (13, 666640), (16, 541645), (20, 433316), (26, 333320), (40, 216658), (52, 166660), (65, 133328), (80, 108329), (104, 83330), (130, 66664), (169, 51280), (208, 41665), (260, 33332), (338, 25640), (520, 16666), (641, 13520), (676, 12820), (845, 10256), (1040, 8333), (1282, 6760), (1352, 6410), (1690, 5128), (2564, 3380), (2704, 3205)]