821982380

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{38303}}^1$

素因数の和:38378

約数の個数: 48

約数和(自身を含む): 1833995520

約数和(自身を除く): 1012013140

約数列:

[1, 2, 4, 5, 10, 20, 29, 37, 58, 74, 116, 145, 148, 185, 290, 370, 580, 740, 1073, 2146, 4292, 5365, 10730, 21460, 38303, 76606, 153212, 191515, 383030, 766060, 1110787, 1417211, 2221574, 2834422, 4443148, 5553935, 5668844, 7086055, 11107870, 14172110, 22215740, 28344220, 41099119, 82198238, 164396476, 205495595, 410991190, 821982380]

約数ペア:

[(1, 821982380), (2, 410991190), (4, 205495595), (5, 164396476), (10, 82198238), (20, 41099119), (29, 28344220), (37, 22215740), (58, 14172110), (74, 11107870), (116, 7086055), (145, 5668844), (148, 5553935), (185, 4443148), (290, 2834422), (370, 2221574), (580, 1417211), (740, 1110787), (1073, 766060), (2146, 383030), (4292, 191515), (5365, 153212), (10730, 76606), (21460, 38303)]