83771380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1$

素因数の和:462

約数の個数: 144

約数和(自身を含む): 235569600

約数和(自身を除く): 151798220

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 49, 55, 70, 76, 77, 95, 98, 110, 133, 140, 154, 190, 196, 209, 220, 245, 266, 308, 380, 385, 409, 418, 490, 532, 539, 665, 770, 818, 836, 931, 980, 1045, 1078, 1330, 1463, 1540, 1636, 1862, 2045, 2090, 2156, 2660, 2695, 2863, 2926, 3724, 4090, 4180, 4499, 4655, 5390, 5726, 5852, 7315, 7771, 8180, 8998, 9310, 10241, 10780, 11452, 14315, 14630, 15542, 17996, 18620, 20041, 20482, 22495, 28630, 29260, 31084, 31493, 38855, 40082, 40964, 44990, 51205, 54397, 57260, 62986, 77710, 80164, 85481, 89980, 100205, 102410, 108794, 125972, 155420, 157465, 170962, 200410, 204820, 217588, 220451, 271985, 314930, 341924, 380779, 400820, 427405, 440902, 543970, 598367, 629860, 761558, 854810, 881804, 1087940, 1102255, 1196734, 1523116, 1709620, 1903895, 2204510, 2393468, 2991835, 3807790, 4188569, 4409020, 5983670, 7615580, 8377138, 11967340, 16754276, 20942845, 41885690, 83771380]

約数ペア:

[(1, 83771380), (2, 41885690), (4, 20942845), (5, 16754276), (7, 11967340), (10, 8377138), (11, 7615580), (14, 5983670), (19, 4409020), (20, 4188569), (22, 3807790), (28, 2991835), (35, 2393468), (38, 2204510), (44, 1903895), (49, 1709620), (55, 1523116), (70, 1196734), (76, 1102255), (77, 1087940), (95, 881804), (98, 854810), (110, 761558), (133, 629860), (140, 598367), (154, 543970), (190, 440902), (196, 427405), (209, 400820), (220, 380779), (245, 341924), (266, 314930), (308, 271985), (380, 220451), (385, 217588), (409, 204820), (418, 200410), (490, 170962), (532, 157465), (539, 155420), (665, 125972), (770, 108794), (818, 102410), (836, 100205), (931, 89980), (980, 85481), (1045, 80164), (1078, 77710), (1330, 62986), (1463, 57260), (1540, 54397), (1636, 51205), (1862, 44990), (2045, 40964), (2090, 40082), (2156, 38855), (2660, 31493), (2695, 31084), (2863, 29260), (2926, 28630), (3724, 22495), (4090, 20482), (4180, 20041), (4499, 18620), (4655, 17996), (5390, 15542), (5726, 14630), (5852, 14315), (7315, 11452), (7771, 10780), (8180, 10241), (8998, 9310)]