68487720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{81533}}^1$

素因数の和:81554

約数の個数: 64

約数和(自身を含む): 234817920

約数和(自身を除く): 166330200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 81533, 163066, 244599, 326132, 407665, 489198, 570731, 652264, 815330, 978396, 1141462, 1222995, 1630660, 1712193, 1956792, 2282924, 2445990, 2853655, 3261320, 3424386, 4565848, 4891980, 5707310, 6848772, 8560965, 9783960, 11414620, 13697544, 17121930, 22829240, 34243860, 68487720]

約数ペア:

[(1, 68487720), (2, 34243860), (3, 22829240), (4, 17121930), (5, 13697544), (6, 11414620), (7, 9783960), (8, 8560965), (10, 6848772), (12, 5707310), (14, 4891980), (15, 4565848), (20, 3424386), (21, 3261320), (24, 2853655), (28, 2445990), (30, 2282924), (35, 1956792), (40, 1712193), (42, 1630660), (56, 1222995), (60, 1141462), (70, 978396), (84, 815330), (105, 652264), (120, 570731), (140, 489198), (168, 407665), (210, 326132), (280, 244599), (420, 163066), (840, 81533)]