12643280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12157}}^1$

素因数の和:12183

約数の個数: 40

約数和(自身を含む): 31659432

約数和(自身を除く): 19016152

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 12157, 24314, 48628, 60785, 97256, 121570, 158041, 194512, 243140, 316082, 486280, 632164, 790205, 972560, 1264328, 1580410, 2528656, 3160820, 6321640, 12643280]

約数ペア:

[(1, 12643280), (2, 6321640), (4, 3160820), (5, 2528656), (8, 1580410), (10, 1264328), (13, 972560), (16, 790205), (20, 632164), (26, 486280), (40, 316082), (52, 243140), (65, 194512), (80, 158041), (104, 121570), (130, 97256), (208, 60785), (260, 48628), (520, 24314), (1040, 12157)]