17758720

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{991}}^1$

素因数の和:1021

約数の個数: 80

約数和(自身を含む): 48711168

約数和(自身を除く): 30952448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 991, 1120, 1280, 1792, 1982, 2240, 2560, 3584, 3964, 4480, 4955, 6937, 7928, 8960, 9910, 13874, 15856, 17920, 19820, 27748, 31712, 34685, 39640, 55496, 63424, 69370, 79280, 110992, 126848, 138740, 158560, 221984, 253696, 277480, 317120, 443968, 507392, 554960, 634240, 887936, 1109920, 1268480, 1775872, 2219840, 2536960, 3551744, 4439680, 8879360, 17758720]

約数ペア:

[(1, 17758720), (2, 8879360), (4, 4439680), (5, 3551744), (7, 2536960), (8, 2219840), (10, 1775872), (14, 1268480), (16, 1109920), (20, 887936), (28, 634240), (32, 554960), (35, 507392), (40, 443968), (56, 317120), (64, 277480), (70, 253696), (80, 221984), (112, 158560), (128, 138740), (140, 126848), (160, 110992), (224, 79280), (256, 69370), (280, 63424), (320, 55496), (448, 39640), (512, 34685), (560, 31712), (640, 27748), (896, 19820), (991, 17920), (1120, 15856), (1280, 13874), (1792, 9910), (1982, 8960), (2240, 7928), (2560, 6937), (3584, 4955), (3964, 4480)]