638534640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{353}}^1\times {\mathrm{7537}}^1$

素因数の和:7906

約数の個数: 80

約数和(自身を含む): 1985328288

約数和(自身を除く): 1346793648

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 353, 706, 1059, 1412, 1765, 2118, 2824, 3530, 4236, 5295, 5648, 7060, 7537, 8472, 10590, 14120, 15074, 16944, 21180, 22611, 28240, 30148, 37685, 42360, 45222, 60296, 75370, 84720, 90444, 113055, 120592, 150740, 180888, 226110, 301480, 361776, 452220, 602960, 904440, 1808880, 2660561, 5321122, 7981683, 10642244, 13302805, 15963366, 21284488, 26605610, 31926732, 39908415, 42568976, 53211220, 63853464, 79816830, 106422440, 127706928, 159633660, 212844880, 319267320, 638534640]

約数ペア:

[(1, 638534640), (2, 319267320), (3, 212844880), (4, 159633660), (5, 127706928), (6, 106422440), (8, 79816830), (10, 63853464), (12, 53211220), (15, 42568976), (16, 39908415), (20, 31926732), (24, 26605610), (30, 21284488), (40, 15963366), (48, 13302805), (60, 10642244), (80, 7981683), (120, 5321122), (240, 2660561), (353, 1808880), (706, 904440), (1059, 602960), (1412, 452220), (1765, 361776), (2118, 301480), (2824, 226110), (3530, 180888), (4236, 150740), (5295, 120592), (5648, 113055), (7060, 90444), (7537, 84720), (8472, 75370), (10590, 60296), (14120, 45222), (15074, 42360), (16944, 37685), (21180, 30148), (22611, 28240)]