142778660

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1\times {\mathrm{487}}^1$

素因数の和:740

約数の個数: 48

約数和(自身を含む): 305472384

約数和(自身を除く): 162693724

約数列:

[1, 2, 4, 5, 10, 20, 107, 137, 214, 274, 428, 487, 535, 548, 685, 974, 1070, 1370, 1948, 2140, 2435, 2740, 4870, 9740, 14659, 29318, 52109, 58636, 66719, 73295, 104218, 133438, 146590, 208436, 260545, 266876, 293180, 333595, 521090, 667190, 1042180, 1334380, 7138933, 14277866, 28555732, 35694665, 71389330, 142778660]

約数ペア:

[(1, 142778660), (2, 71389330), (4, 35694665), (5, 28555732), (10, 14277866), (20, 7138933), (107, 1334380), (137, 1042180), (214, 667190), (274, 521090), (428, 333595), (487, 293180), (535, 266876), (548, 260545), (685, 208436), (974, 146590), (1070, 133438), (1370, 104218), (1948, 73295), (2140, 66719), (2435, 58636), (2740, 52109), (4870, 29318), (9740, 14659)]