209745640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{1607}}^1$

素因数の和:1882

約数の個数: 64

約数和(自身を含む): 510572160

約数和(自身を除く): 300826520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 251, 260, 502, 520, 1004, 1255, 1607, 2008, 2510, 3214, 3263, 5020, 6428, 6526, 8035, 10040, 12856, 13052, 16070, 16315, 20891, 26104, 32140, 32630, 41782, 64280, 65260, 83564, 104455, 130520, 167128, 208910, 403357, 417820, 806714, 835640, 1613428, 2016785, 3226856, 4033570, 5243641, 8067140, 10487282, 16134280, 20974564, 26218205, 41949128, 52436410, 104872820, 209745640]

約数ペア:

[(1, 209745640), (2, 104872820), (4, 52436410), (5, 41949128), (8, 26218205), (10, 20974564), (13, 16134280), (20, 10487282), (26, 8067140), (40, 5243641), (52, 4033570), (65, 3226856), (104, 2016785), (130, 1613428), (251, 835640), (260, 806714), (502, 417820), (520, 403357), (1004, 208910), (1255, 167128), (1607, 130520), (2008, 104455), (2510, 83564), (3214, 65260), (3263, 64280), (5020, 41782), (6428, 32630), (6526, 32140), (8035, 26104), (10040, 20891), (12856, 16315), (13052, 16070)]