7402780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:80

約数の個数: 144

約数和(自身を含む): 21450240

約数和(自身を除く): 14047460

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 23, 28, 35, 38, 44, 46, 55, 70, 76, 77, 92, 95, 110, 115, 121, 133, 140, 154, 161, 190, 209, 220, 230, 242, 253, 266, 308, 322, 380, 385, 418, 437, 460, 484, 506, 532, 605, 644, 665, 770, 805, 836, 847, 874, 1012, 1045, 1210, 1265, 1330, 1463, 1540, 1610, 1694, 1748, 1771, 2090, 2185, 2299, 2420, 2530, 2660, 2783, 2926, 3059, 3220, 3388, 3542, 4180, 4235, 4370, 4598, 4807, 5060, 5566, 5852, 6118, 7084, 7315, 8470, 8740, 8855, 9196, 9614, 11132, 11495, 12236, 13915, 14630, 15295, 16093, 16940, 17710, 19228, 19481, 22990, 24035, 27830, 29260, 30590, 32186, 33649, 35420, 38962, 45980, 48070, 52877, 55660, 61180, 64372, 67298, 77924, 80465, 96140, 97405, 105754, 134596, 160930, 168245, 194810, 211508, 264385, 321860, 336490, 370139, 389620, 528770, 672980, 740278, 1057540, 1480556, 1850695, 3701390, 7402780]

約数ペア:

[(1, 7402780), (2, 3701390), (4, 1850695), (5, 1480556), (7, 1057540), (10, 740278), (11, 672980), (14, 528770), (19, 389620), (20, 370139), (22, 336490), (23, 321860), (28, 264385), (35, 211508), (38, 194810), (44, 168245), (46, 160930), (55, 134596), (70, 105754), (76, 97405), (77, 96140), (92, 80465), (95, 77924), (110, 67298), (115, 64372), (121, 61180), (133, 55660), (140, 52877), (154, 48070), (161, 45980), (190, 38962), (209, 35420), (220, 33649), (230, 32186), (242, 30590), (253, 29260), (266, 27830), (308, 24035), (322, 22990), (380, 19481), (385, 19228), (418, 17710), (437, 16940), (460, 16093), (484, 15295), (506, 14630), (532, 13915), (605, 12236), (644, 11495), (665, 11132), (770, 9614), (805, 9196), (836, 8855), (847, 8740), (874, 8470), (1012, 7315), (1045, 7084), (1210, 6118), (1265, 5852), (1330, 5566), (1463, 5060), (1540, 4807), (1610, 4598), (1694, 4370), (1748, 4235), (1771, 4180), (2090, 3542), (2185, 3388), (2299, 3220), (2420, 3059), (2530, 2926), (2660, 2783)]