20175377560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{79669}}^1$

素因数の和:80180

約数の個数: 64

約数和(自身を含む): 48987489600

約数和(自身を除く): 28812112040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 487, 520, 974, 1948, 2435, 3896, 4870, 6331, 9740, 12662, 19480, 25324, 31655, 50648, 63310, 79669, 126620, 159338, 253240, 318676, 398345, 637352, 796690, 1035697, 1593380, 2071394, 3186760, 4142788, 5178485, 8285576, 10356970, 20713940, 38798803, 41427880, 77597606, 155195212, 193994015, 310390424, 387988030, 504384439, 775976060, 1008768878, 1551952120, 2017537756, 2521922195, 4035075512, 5043844390, 10087688780, 20175377560]

約数ペア:

[(1, 20175377560), (2, 10087688780), (4, 5043844390), (5, 4035075512), (8, 2521922195), (10, 2017537756), (13, 1551952120), (20, 1008768878), (26, 775976060), (40, 504384439), (52, 387988030), (65, 310390424), (104, 193994015), (130, 155195212), (260, 77597606), (487, 41427880), (520, 38798803), (974, 20713940), (1948, 10356970), (2435, 8285576), (3896, 5178485), (4870, 4142788), (6331, 3186760), (9740, 2071394), (12662, 1593380), (19480, 1035697), (25324, 796690), (31655, 637352), (50648, 398345), (63310, 318676), (79669, 253240), (126620, 159338)]