31421880

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:398

約数の個数: 192

約数和(自身を含む): 120219840

約数和(自身を除く): 88797960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 37, 40, 42, 45, 56, 60, 63, 70, 72, 74, 84, 90, 105, 111, 120, 126, 140, 148, 168, 180, 185, 210, 222, 252, 259, 280, 296, 315, 333, 337, 360, 370, 420, 444, 504, 518, 555, 630, 666, 674, 740, 777, 840, 888, 1011, 1036, 1110, 1260, 1295, 1332, 1348, 1480, 1554, 1665, 1685, 2022, 2072, 2220, 2331, 2359, 2520, 2590, 2664, 2696, 3033, 3108, 3330, 3370, 3885, 4044, 4440, 4662, 4718, 5055, 5180, 6066, 6216, 6660, 6740, 7077, 7770, 8088, 9324, 9436, 10110, 10360, 11655, 11795, 12132, 12469, 13320, 13480, 14154, 15165, 15540, 18648, 18872, 20220, 21231, 23310, 23590, 24264, 24938, 28308, 30330, 31080, 35385, 37407, 40440, 42462, 46620, 47180, 49876, 56616, 60660, 62345, 70770, 74814, 84924, 87283, 93240, 94360, 99752, 106155, 112221, 121320, 124690, 141540, 149628, 169848, 174566, 187035, 212310, 224442, 249380, 261849, 283080, 299256, 349132, 374070, 424620, 436415, 448884, 498760, 523698, 561105, 698264, 748140, 785547, 849240, 872830, 897768, 1047396, 1122210, 1309245, 1496280, 1571094, 1745660, 2094792, 2244420, 2618490, 3142188, 3491320, 3927735, 4488840, 5236980, 6284376, 7855470, 10473960, 15710940, 31421880]

約数ペア:

[(1, 31421880), (2, 15710940), (3, 10473960), (4, 7855470), (5, 6284376), (6, 5236980), (7, 4488840), (8, 3927735), (9, 3491320), (10, 3142188), (12, 2618490), (14, 2244420), (15, 2094792), (18, 1745660), (20, 1571094), (21, 1496280), (24, 1309245), (28, 1122210), (30, 1047396), (35, 897768), (36, 872830), (37, 849240), (40, 785547), (42, 748140), (45, 698264), (56, 561105), (60, 523698), (63, 498760), (70, 448884), (72, 436415), (74, 424620), (84, 374070), (90, 349132), (105, 299256), (111, 283080), (120, 261849), (126, 249380), (140, 224442), (148, 212310), (168, 187035), (180, 174566), (185, 169848), (210, 149628), (222, 141540), (252, 124690), (259, 121320), (280, 112221), (296, 106155), (315, 99752), (333, 94360), (337, 93240), (360, 87283), (370, 84924), (420, 74814), (444, 70770), (504, 62345), (518, 60660), (555, 56616), (630, 49876), (666, 47180), (674, 46620), (740, 42462), (777, 40440), (840, 37407), (888, 35385), (1011, 31080), (1036, 30330), (1110, 28308), (1260, 24938), (1295, 24264), (1332, 23590), (1348, 23310), (1480, 21231), (1554, 20220), (1665, 18872), (1685, 18648), (2022, 15540), (2072, 15165), (2220, 14154), (2331, 13480), (2359, 13320), (2520, 12469), (2590, 12132), (2664, 11795), (2696, 11655), (3033, 10360), (3108, 10110), (3330, 9436), (3370, 9324), (3885, 8088), (4044, 7770), (4440, 7077), (4662, 6740), (4718, 6660), (5055, 6216), (5180, 6066)]