1688784520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{43933}}^1$

素因数の和:44006

約数の個数: 48

約数和(自身を含む): 3926381580

約数和(自身を除く): 2237597060

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 961, 1240, 1922, 3844, 4805, 7688, 9610, 19220, 38440, 43933, 87866, 175732, 219665, 351464, 439330, 878660, 1361923, 1757320, 2723846, 5447692, 6809615, 10895384, 13619230, 27238460, 42219613, 54476920, 84439226, 168878452, 211098065, 337756904, 422196130, 844392260, 1688784520]

約数ペア:

[(1, 1688784520), (2, 844392260), (4, 422196130), (5, 337756904), (8, 211098065), (10, 168878452), (20, 84439226), (31, 54476920), (40, 42219613), (62, 27238460), (124, 13619230), (155, 10895384), (248, 6809615), (310, 5447692), (620, 2723846), (961, 1757320), (1240, 1361923), (1922, 878660), (3844, 439330), (4805, 351464), (7688, 219665), (9610, 175732), (19220, 87866), (38440, 43933)]