20199560420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2503}}^1\times {\mathrm{31039}}^1$

素因数の和:33564

約数の個数: 48

約数和(自身を含む): 45701806080

約数和(自身を除く): 25502245660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2503, 5006, 10012, 12515, 25030, 31039, 32539, 50060, 62078, 65078, 124156, 130156, 155195, 162695, 310390, 325390, 403507, 620780, 650780, 807014, 1614028, 2017535, 4035070, 8070140, 77690617, 155381234, 310762468, 388453085, 776906170, 1009978021, 1553812340, 2019956042, 4039912084, 5049890105, 10099780210, 20199560420]

約数ペア:

[(1, 20199560420), (2, 10099780210), (4, 5049890105), (5, 4039912084), (10, 2019956042), (13, 1553812340), (20, 1009978021), (26, 776906170), (52, 388453085), (65, 310762468), (130, 155381234), (260, 77690617), (2503, 8070140), (5006, 4035070), (10012, 2017535), (12515, 1614028), (25030, 807014), (31039, 650780), (32539, 620780), (50060, 403507), (62078, 325390), (65078, 310390), (124156, 162695), (130156, 155195)]