81580620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{661}}^1$

素因数の和:712

約数の個数: 144

約数和(自身を含む): 266251104

約数和(自身を除く): 184670484

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 17, 20, 22, 30, 33, 34, 44, 51, 55, 60, 66, 68, 85, 102, 110, 121, 132, 165, 170, 187, 204, 220, 242, 255, 330, 340, 363, 374, 484, 510, 561, 605, 660, 661, 726, 748, 935, 1020, 1122, 1210, 1322, 1452, 1815, 1870, 1983, 2057, 2244, 2420, 2644, 2805, 3305, 3630, 3740, 3966, 4114, 5610, 6171, 6610, 7260, 7271, 7932, 8228, 9915, 10285, 11220, 11237, 12342, 13220, 14542, 19830, 20570, 21813, 22474, 24684, 29084, 30855, 33711, 36355, 39660, 41140, 43626, 44948, 56185, 61710, 67422, 72710, 79981, 87252, 109065, 112370, 123420, 123607, 134844, 145420, 159962, 168555, 218130, 224740, 239943, 247214, 319924, 337110, 370821, 399905, 436260, 479886, 494428, 618035, 674220, 741642, 799810, 959772, 1199715, 1236070, 1359677, 1483284, 1599620, 1854105, 2399430, 2472140, 2719354, 3708210, 4079031, 4798860, 5438708, 6798385, 7416420, 8158062, 13596770, 16316124, 20395155, 27193540, 40790310, 81580620]

約数ペア:

[(1, 81580620), (2, 40790310), (3, 27193540), (4, 20395155), (5, 16316124), (6, 13596770), (10, 8158062), (11, 7416420), (12, 6798385), (15, 5438708), (17, 4798860), (20, 4079031), (22, 3708210), (30, 2719354), (33, 2472140), (34, 2399430), (44, 1854105), (51, 1599620), (55, 1483284), (60, 1359677), (66, 1236070), (68, 1199715), (85, 959772), (102, 799810), (110, 741642), (121, 674220), (132, 618035), (165, 494428), (170, 479886), (187, 436260), (204, 399905), (220, 370821), (242, 337110), (255, 319924), (330, 247214), (340, 239943), (363, 224740), (374, 218130), (484, 168555), (510, 159962), (561, 145420), (605, 134844), (660, 123607), (661, 123420), (726, 112370), (748, 109065), (935, 87252), (1020, 79981), (1122, 72710), (1210, 67422), (1322, 61710), (1452, 56185), (1815, 44948), (1870, 43626), (1983, 41140), (2057, 39660), (2244, 36355), (2420, 33711), (2644, 30855), (2805, 29084), (3305, 24684), (3630, 22474), (3740, 21813), (3966, 20570), (4114, 19830), (5610, 14542), (6171, 13220), (6610, 12342), (7260, 11237), (7271, 11220), (7932, 10285), (8228, 9915)]