81720960

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1373}}^1$

素因数の和:1426

約数の個数: 128

約数和(自身を含む): 269084160

約数和(自身を除く): 187363200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 310, 320, 372, 384, 465, 480, 496, 620, 640, 744, 930, 960, 992, 1240, 1373, 1488, 1860, 1920, 1984, 2480, 2746, 2976, 3720, 3968, 4119, 4960, 5492, 5952, 6865, 7440, 8238, 9920, 10984, 11904, 13730, 14880, 16476, 19840, 20595, 21968, 27460, 29760, 32952, 41190, 42563, 43936, 54920, 59520, 65904, 82380, 85126, 87872, 109840, 127689, 131808, 164760, 170252, 175744, 212815, 219680, 255378, 263616, 329520, 340504, 425630, 439360, 510756, 527232, 638445, 659040, 681008, 851260, 878720, 1021512, 1276890, 1318080, 1362016, 1702520, 2043024, 2553780, 2636160, 2724032, 3405040, 4086048, 5107560, 5448064, 6810080, 8172096, 10215120, 13620160, 16344192, 20430240, 27240320, 40860480, 81720960]

約数ペア:

[(1, 81720960), (2, 40860480), (3, 27240320), (4, 20430240), (5, 16344192), (6, 13620160), (8, 10215120), (10, 8172096), (12, 6810080), (15, 5448064), (16, 5107560), (20, 4086048), (24, 3405040), (30, 2724032), (31, 2636160), (32, 2553780), (40, 2043024), (48, 1702520), (60, 1362016), (62, 1318080), (64, 1276890), (80, 1021512), (93, 878720), (96, 851260), (120, 681008), (124, 659040), (128, 638445), (155, 527232), (160, 510756), (186, 439360), (192, 425630), (240, 340504), (248, 329520), (310, 263616), (320, 255378), (372, 219680), (384, 212815), (465, 175744), (480, 170252), (496, 164760), (620, 131808), (640, 127689), (744, 109840), (930, 87872), (960, 85126), (992, 82380), (1240, 65904), (1373, 59520), (1488, 54920), (1860, 43936), (1920, 42563), (1984, 41190), (2480, 32952), (2746, 29760), (2976, 27460), (3720, 21968), (3968, 20595), (4119, 19840), (4960, 16476), (5492, 14880), (5952, 13730), (6865, 11904), (7440, 10984), (8238, 9920)]