1680491020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{15803}}^1$

素因数の和:16234

約数の個数: 48

約数和(自身を含む): 3810028320

約数和(自身を除く): 2129537300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 409, 818, 1636, 2045, 4090, 5317, 8180, 10634, 15803, 21268, 26585, 31606, 53170, 63212, 79015, 106340, 158030, 205439, 316060, 410878, 821756, 1027195, 2054390, 4108780, 6463427, 12926854, 25853708, 32317135, 64634270, 84024551, 129268540, 168049102, 336098204, 420122755, 840245510, 1680491020]

約数ペア:

[(1, 1680491020), (2, 840245510), (4, 420122755), (5, 336098204), (10, 168049102), (13, 129268540), (20, 84024551), (26, 64634270), (52, 32317135), (65, 25853708), (130, 12926854), (260, 6463427), (409, 4108780), (818, 2054390), (1636, 1027195), (2045, 821756), (4090, 410878), (5317, 316060), (8180, 205439), (10634, 158030), (15803, 106340), (21268, 79015), (26585, 63212), (31606, 53170)]