20216448020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{337}}^1\times {\mathrm{157867}}^1$

素因数の和:158232

約数の個数: 48

約数和(自身を含む): 44821882560

約数和(自身を除く): 24605434540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 337, 380, 674, 1348, 1685, 3370, 6403, 6740, 12806, 25612, 32015, 64030, 128060, 157867, 315734, 631468, 789335, 1578670, 2999473, 3157340, 5998946, 11997892, 14997365, 29994730, 53201179, 59989460, 106402358, 212804716, 266005895, 532011790, 1010822401, 1064023580, 2021644802, 4043289604, 5054112005, 10108224010, 20216448020]

約数ペア:

[(1, 20216448020), (2, 10108224010), (4, 5054112005), (5, 4043289604), (10, 2021644802), (19, 1064023580), (20, 1010822401), (38, 532011790), (76, 266005895), (95, 212804716), (190, 106402358), (337, 59989460), (380, 53201179), (674, 29994730), (1348, 14997365), (1685, 11997892), (3370, 5998946), (6403, 3157340), (6740, 2999473), (12806, 1578670), (25612, 789335), (32015, 631468), (64030, 315734), (128060, 157867)]