216481040

素因数分解:

$2^4\times 5^1\times {\mathrm{277}}^1\times {\mathrm{9769}}^1$

素因数の和:10059

約数の個数: 40

約数和(自身を含む): 505187160

約数和(自身を除く): 288706120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 277, 554, 1108, 1385, 2216, 2770, 4432, 5540, 9769, 11080, 19538, 22160, 39076, 48845, 78152, 97690, 156304, 195380, 390760, 781520, 2706013, 5412026, 10824052, 13530065, 21648104, 27060130, 43296208, 54120260, 108240520, 216481040]

約数ペア:

[(1, 216481040), (2, 108240520), (4, 54120260), (5, 43296208), (8, 27060130), (10, 21648104), (16, 13530065), (20, 10824052), (40, 5412026), (80, 2706013), (277, 781520), (554, 390760), (1108, 195380), (1385, 156304), (2216, 97690), (2770, 78152), (4432, 48845), (5540, 39076), (9769, 22160), (11080, 19538)]