19921920

素因数分解:

$2^{10}\times 3^1\times 5^1\times {\mathrm{1297}}^1$

素因数の和:1325

約数の個数: 88

約数和(自身を含む): 63768144

約数和(自身を除く): 43846224

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1024, 1280, 1297, 1536, 1920, 2560, 2594, 3072, 3840, 3891, 5120, 5188, 6485, 7680, 7782, 10376, 12970, 15360, 15564, 19455, 20752, 25940, 31128, 38910, 41504, 51880, 62256, 77820, 83008, 103760, 124512, 155640, 166016, 207520, 249024, 311280, 332032, 415040, 498048, 622560, 664064, 830080, 996096, 1245120, 1328128, 1660160, 1992192, 2490240, 3320320, 3984384, 4980480, 6640640, 9960960, 19921920]

約数ペア:

[(1, 19921920), (2, 9960960), (3, 6640640), (4, 4980480), (5, 3984384), (6, 3320320), (8, 2490240), (10, 1992192), (12, 1660160), (15, 1328128), (16, 1245120), (20, 996096), (24, 830080), (30, 664064), (32, 622560), (40, 498048), (48, 415040), (60, 332032), (64, 311280), (80, 249024), (96, 207520), (120, 166016), (128, 155640), (160, 124512), (192, 103760), (240, 83008), (256, 77820), (320, 62256), (384, 51880), (480, 41504), (512, 38910), (640, 31128), (768, 25940), (960, 20752), (1024, 19455), (1280, 15564), (1297, 15360), (1536, 12970), (1920, 10376), (2560, 7782), (2594, 7680), (3072, 6485), (3840, 5188), (3891, 5120)]