90807780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{461}}^1$

素因数の和:554

約数の個数: 144

約数和(自身を含む): 300839616

約数和(自身を除く): 210031836

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 67, 70, 84, 98, 105, 134, 140, 147, 196, 201, 210, 245, 268, 294, 335, 402, 420, 461, 469, 490, 588, 670, 735, 804, 922, 938, 980, 1005, 1340, 1383, 1407, 1470, 1844, 1876, 2010, 2305, 2345, 2766, 2814, 2940, 3227, 3283, 4020, 4610, 4690, 5532, 5628, 6454, 6566, 6915, 7035, 9220, 9380, 9681, 9849, 12908, 13132, 13830, 14070, 16135, 16415, 19362, 19698, 22589, 27660, 28140, 30887, 32270, 32830, 38724, 39396, 45178, 48405, 49245, 61774, 64540, 65660, 67767, 90356, 92661, 96810, 98490, 112945, 123548, 135534, 154435, 185322, 193620, 196980, 216209, 225890, 271068, 308870, 338835, 370644, 432418, 451780, 463305, 617740, 648627, 677670, 864836, 926610, 1081045, 1297254, 1355340, 1513463, 1853220, 2162090, 2594508, 3026926, 3243135, 4324180, 4540389, 6053852, 6486270, 7567315, 9080778, 12972540, 15134630, 18161556, 22701945, 30269260, 45403890, 90807780]

約数ペア:

[(1, 90807780), (2, 45403890), (3, 30269260), (4, 22701945), (5, 18161556), (6, 15134630), (7, 12972540), (10, 9080778), (12, 7567315), (14, 6486270), (15, 6053852), (20, 4540389), (21, 4324180), (28, 3243135), (30, 3026926), (35, 2594508), (42, 2162090), (49, 1853220), (60, 1513463), (67, 1355340), (70, 1297254), (84, 1081045), (98, 926610), (105, 864836), (134, 677670), (140, 648627), (147, 617740), (196, 463305), (201, 451780), (210, 432418), (245, 370644), (268, 338835), (294, 308870), (335, 271068), (402, 225890), (420, 216209), (461, 196980), (469, 193620), (490, 185322), (588, 154435), (670, 135534), (735, 123548), (804, 112945), (922, 98490), (938, 96810), (980, 92661), (1005, 90356), (1340, 67767), (1383, 65660), (1407, 64540), (1470, 61774), (1844, 49245), (1876, 48405), (2010, 45178), (2305, 39396), (2345, 38724), (2766, 32830), (2814, 32270), (2940, 30887), (3227, 28140), (3283, 27660), (4020, 22589), (4610, 19698), (4690, 19362), (5532, 16415), (5628, 16135), (6454, 14070), (6566, 13830), (6915, 13132), (7035, 12908), (9220, 9849), (9380, 9681)]