217435120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{388277}}^1$

素因数の和:388297

約数の個数: 40

約数和(自身を含む): 577757664

約数和(自身を除く): 360322544

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 388277, 776554, 1553108, 1941385, 2717939, 3106216, 3882770, 5435878, 6212432, 7765540, 10871756, 13589695, 15531080, 21743512, 27179390, 31062160, 43487024, 54358780, 108717560, 217435120]

約数ペア:

[(1, 217435120), (2, 108717560), (4, 54358780), (5, 43487024), (7, 31062160), (8, 27179390), (10, 21743512), (14, 15531080), (16, 13589695), (20, 10871756), (28, 7765540), (35, 6212432), (40, 5435878), (56, 3882770), (70, 3106216), (80, 2717939), (112, 1941385), (140, 1553108), (280, 776554), (560, 388277)]