201491380

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{151}}^1\times {\mathrm{487}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 429924096

約数和(自身を除く): 228432716

約数列:

[1, 2, 4, 5, 10, 20, 137, 151, 274, 302, 487, 548, 604, 685, 755, 974, 1370, 1510, 1948, 2435, 2740, 3020, 4870, 9740, 20687, 41374, 66719, 73537, 82748, 103435, 133438, 147074, 206870, 266876, 294148, 333595, 367685, 413740, 667190, 735370, 1334380, 1470740, 10074569, 20149138, 40298276, 50372845, 100745690, 201491380]

約数ペア:

[(1, 201491380), (2, 100745690), (4, 50372845), (5, 40298276), (10, 20149138), (20, 10074569), (137, 1470740), (151, 1334380), (274, 735370), (302, 667190), (487, 413740), (548, 367685), (604, 333595), (685, 294148), (755, 266876), (974, 206870), (1370, 147074), (1510, 133438), (1948, 103435), (2435, 82748), (2740, 73537), (3020, 66719), (4870, 41374), (9740, 20687)]