81488820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{113}}^1$

素因数の和:250

約数の個数: 192

約数和(自身を含む): 281304576

約数和(自身を除く): 199815756

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 84, 85, 101, 102, 105, 113, 119, 140, 170, 202, 204, 210, 226, 238, 255, 303, 339, 340, 357, 404, 420, 452, 476, 505, 510, 565, 595, 606, 678, 707, 714, 791, 1010, 1020, 1130, 1190, 1212, 1356, 1414, 1428, 1515, 1582, 1695, 1717, 1785, 1921, 2020, 2121, 2260, 2373, 2380, 2828, 3030, 3164, 3390, 3434, 3535, 3570, 3842, 3955, 4242, 4746, 5151, 5763, 6060, 6780, 6868, 7070, 7140, 7684, 7910, 8484, 8585, 9492, 9605, 10302, 10605, 11413, 11526, 11865, 12019, 13447, 14140, 15820, 17170, 19210, 20604, 21210, 22826, 23052, 23730, 24038, 25755, 26894, 28815, 34239, 34340, 36057, 38420, 40341, 42420, 45652, 47460, 48076, 51510, 53788, 57065, 57630, 60095, 67235, 68478, 72114, 79891, 80682, 103020, 114130, 115260, 120190, 134470, 136956, 144228, 159782, 161364, 171195, 180285, 194021, 201705, 228260, 239673, 240380, 268940, 319564, 342390, 360570, 388042, 399455, 403410, 479346, 582063, 684780, 721140, 776084, 798910, 806820, 958692, 970105, 1164126, 1198365, 1358147, 1597820, 1940210, 2328252, 2396730, 2716294, 2910315, 3880420, 4074441, 4793460, 5432588, 5820630, 6790735, 8148882, 11641260, 13581470, 16297764, 20372205, 27162940, 40744410, 81488820]

約数ペア:

[(1, 81488820), (2, 40744410), (3, 27162940), (4, 20372205), (5, 16297764), (6, 13581470), (7, 11641260), (10, 8148882), (12, 6790735), (14, 5820630), (15, 5432588), (17, 4793460), (20, 4074441), (21, 3880420), (28, 2910315), (30, 2716294), (34, 2396730), (35, 2328252), (42, 1940210), (51, 1597820), (60, 1358147), (68, 1198365), (70, 1164126), (84, 970105), (85, 958692), (101, 806820), (102, 798910), (105, 776084), (113, 721140), (119, 684780), (140, 582063), (170, 479346), (202, 403410), (204, 399455), (210, 388042), (226, 360570), (238, 342390), (255, 319564), (303, 268940), (339, 240380), (340, 239673), (357, 228260), (404, 201705), (420, 194021), (452, 180285), (476, 171195), (505, 161364), (510, 159782), (565, 144228), (595, 136956), (606, 134470), (678, 120190), (707, 115260), (714, 114130), (791, 103020), (1010, 80682), (1020, 79891), (1130, 72114), (1190, 68478), (1212, 67235), (1356, 60095), (1414, 57630), (1428, 57065), (1515, 53788), (1582, 51510), (1695, 48076), (1717, 47460), (1785, 45652), (1921, 42420), (2020, 40341), (2121, 38420), (2260, 36057), (2373, 34340), (2380, 34239), (2828, 28815), (3030, 26894), (3164, 25755), (3390, 24038), (3434, 23730), (3535, 23052), (3570, 22826), (3842, 21210), (3955, 20604), (4242, 19210), (4746, 17170), (5151, 15820), (5763, 14140), (6060, 13447), (6780, 12019), (6868, 11865), (7070, 11526), (7140, 11413), (7684, 10605), (7910, 10302), (8484, 9605), (8585, 9492)]