1288173880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1\times {\mathrm{631}}^1$

素因数の和:989

約数の個数: 128

約数和(自身を含む): 3472865280

約数和(自身を除く): 2184691400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 317, 322, 460, 631, 634, 644, 805, 920, 1262, 1268, 1288, 1585, 1610, 2219, 2524, 2536, 3155, 3170, 3220, 4417, 4438, 5048, 6310, 6340, 6440, 7291, 8834, 8876, 11095, 12620, 12680, 14513, 14582, 17668, 17752, 22085, 22190, 25240, 29026, 29164, 35336, 36455, 44170, 44380, 51037, 58052, 58328, 72565, 72910, 88340, 88760, 101591, 102074, 116104, 145130, 145820, 176680, 200027, 203182, 204148, 255185, 290260, 291640, 400054, 406364, 408296, 507955, 510370, 580520, 800108, 812728, 1000135, 1015910, 1020740, 1400189, 1600216, 2000270, 2031820, 2041480, 2800378, 4000540, 4063640, 4600621, 5600756, 7000945, 8001080, 9201242, 11201512, 14001890, 18402484, 23003105, 28003780, 32204347, 36804968, 46006210, 56007560, 64408694, 92012420, 128817388, 161021735, 184024840, 257634776, 322043470, 644086940, 1288173880]

約数ペア:

[(1, 1288173880), (2, 644086940), (4, 322043470), (5, 257634776), (7, 184024840), (8, 161021735), (10, 128817388), (14, 92012420), (20, 64408694), (23, 56007560), (28, 46006210), (35, 36804968), (40, 32204347), (46, 28003780), (56, 23003105), (70, 18402484), (92, 14001890), (115, 11201512), (140, 9201242), (161, 8001080), (184, 7000945), (230, 5600756), (280, 4600621), (317, 4063640), (322, 4000540), (460, 2800378), (631, 2041480), (634, 2031820), (644, 2000270), (805, 1600216), (920, 1400189), (1262, 1020740), (1268, 1015910), (1288, 1000135), (1585, 812728), (1610, 800108), (2219, 580520), (2524, 510370), (2536, 507955), (3155, 408296), (3170, 406364), (3220, 400054), (4417, 291640), (4438, 290260), (5048, 255185), (6310, 204148), (6340, 203182), (6440, 200027), (7291, 176680), (8834, 145820), (8876, 145130), (11095, 116104), (12620, 102074), (12680, 101591), (14513, 88760), (14582, 88340), (17668, 72910), (17752, 72565), (22085, 58328), (22190, 58052), (25240, 51037), (29026, 44380), (29164, 44170), (35336, 36455)]