16401280

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{523}}^1$

素因数の和:556

約数の個数: 96

約数和(自身を含む): 45698040

約数和(自身を除く): 29296760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 523, 560, 640, 784, 896, 980, 1046, 1120, 1568, 1960, 2092, 2240, 2615, 3136, 3661, 3920, 4184, 4480, 5230, 6272, 7322, 7840, 8368, 10460, 14644, 15680, 16736, 18305, 20920, 25627, 29288, 31360, 33472, 36610, 41840, 51254, 58576, 66944, 73220, 83680, 102508, 117152, 128135, 146440, 167360, 205016, 234304, 256270, 292880, 334720, 410032, 468608, 512540, 585760, 820064, 1025080, 1171520, 1640128, 2050160, 2343040, 3280256, 4100320, 8200640, 16401280]

約数ペア:

[(1, 16401280), (2, 8200640), (4, 4100320), (5, 3280256), (7, 2343040), (8, 2050160), (10, 1640128), (14, 1171520), (16, 1025080), (20, 820064), (28, 585760), (32, 512540), (35, 468608), (40, 410032), (49, 334720), (56, 292880), (64, 256270), (70, 234304), (80, 205016), (98, 167360), (112, 146440), (128, 128135), (140, 117152), (160, 102508), (196, 83680), (224, 73220), (245, 66944), (280, 58576), (320, 51254), (392, 41840), (448, 36610), (490, 33472), (523, 31360), (560, 29288), (640, 25627), (784, 20920), (896, 18305), (980, 16736), (1046, 15680), (1120, 14644), (1568, 10460), (1960, 8368), (2092, 7840), (2240, 7322), (2615, 6272), (3136, 5230), (3661, 4480), (3920, 4184)]