55282780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2969}}^1$

素因数の和:3011

約数の個数: 72

約数和(自身を含む): 142203600

約数和(自身を除く): 86920820

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1330, 1862, 2660, 2969, 3724, 4655, 5938, 9310, 11876, 14845, 18620, 20783, 29690, 41566, 56411, 59380, 83132, 103915, 112822, 145481, 207830, 225644, 282055, 290962, 394877, 415660, 564110, 581924, 727405, 789754, 1128220, 1454810, 1579508, 1974385, 2764139, 2909620, 3948770, 5528278, 7897540, 11056556, 13820695, 27641390, 55282780]

約数ペア:

[(1, 55282780), (2, 27641390), (4, 13820695), (5, 11056556), (7, 7897540), (10, 5528278), (14, 3948770), (19, 2909620), (20, 2764139), (28, 1974385), (35, 1579508), (38, 1454810), (49, 1128220), (70, 789754), (76, 727405), (95, 581924), (98, 564110), (133, 415660), (140, 394877), (190, 290962), (196, 282055), (245, 225644), (266, 207830), (380, 145481), (490, 112822), (532, 103915), (665, 83132), (931, 59380), (980, 56411), (1330, 41566), (1862, 29690), (2660, 20783), (2969, 18620), (3724, 14845), (4655, 11876), (5938, 9310)]