81998070

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{461}}^1$

素因数の和:507

約数の個数: 144

約数和(自身を含む): 252174384

約数和(自身を除く): 170176314

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 49, 55, 66, 70, 77, 98, 105, 110, 121, 147, 154, 165, 210, 231, 242, 245, 294, 330, 363, 385, 461, 462, 490, 539, 605, 726, 735, 770, 847, 922, 1078, 1155, 1210, 1383, 1470, 1617, 1694, 1815, 2305, 2310, 2541, 2695, 2766, 3227, 3234, 3630, 4235, 4610, 5071, 5082, 5390, 5929, 6454, 6915, 8085, 8470, 9681, 10142, 11858, 12705, 13830, 15213, 16135, 16170, 17787, 19362, 22589, 25355, 25410, 29645, 30426, 32270, 35497, 35574, 45178, 48405, 50710, 55781, 59290, 67767, 70994, 76065, 88935, 96810, 106491, 111562, 112945, 135534, 152130, 167343, 177485, 177870, 212982, 225890, 248479, 278905, 334686, 338835, 354970, 390467, 496958, 532455, 557810, 677670, 745437, 780934, 836715, 1064910, 1171401, 1242395, 1490874, 1673430, 1952335, 2342802, 2484790, 2733269, 3727185, 3904670, 5466538, 5857005, 7454370, 8199807, 11714010, 13666345, 16399614, 27332690, 40999035, 81998070]

約数ペア:

[(1, 81998070), (2, 40999035), (3, 27332690), (5, 16399614), (6, 13666345), (7, 11714010), (10, 8199807), (11, 7454370), (14, 5857005), (15, 5466538), (21, 3904670), (22, 3727185), (30, 2733269), (33, 2484790), (35, 2342802), (42, 1952335), (49, 1673430), (55, 1490874), (66, 1242395), (70, 1171401), (77, 1064910), (98, 836715), (105, 780934), (110, 745437), (121, 677670), (147, 557810), (154, 532455), (165, 496958), (210, 390467), (231, 354970), (242, 338835), (245, 334686), (294, 278905), (330, 248479), (363, 225890), (385, 212982), (461, 177870), (462, 177485), (490, 167343), (539, 152130), (605, 135534), (726, 112945), (735, 111562), (770, 106491), (847, 96810), (922, 88935), (1078, 76065), (1155, 70994), (1210, 67767), (1383, 59290), (1470, 55781), (1617, 50710), (1694, 48405), (1815, 45178), (2305, 35574), (2310, 35497), (2541, 32270), (2695, 30426), (2766, 29645), (3227, 25410), (3234, 25355), (3630, 22589), (4235, 19362), (4610, 17787), (5071, 16170), (5082, 16135), (5390, 15213), (5929, 13830), (6454, 12705), (6915, 11858), (8085, 10142), (8470, 9681)]