20809700

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{12241}}^1$

素因数の和:12272

約数の個数: 36

約数和(自身を含む): 47817252

約数和(自身を除く): 27007552

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 340, 425, 850, 1700, 12241, 24482, 48964, 61205, 122410, 208097, 244820, 306025, 416194, 612050, 832388, 1040485, 1224100, 2080970, 4161940, 5202425, 10404850, 20809700]

約数ペア:

[(1, 20809700), (2, 10404850), (4, 5202425), (5, 4161940), (10, 2080970), (17, 1224100), (20, 1040485), (25, 832388), (34, 612050), (50, 416194), (68, 306025), (85, 244820), (100, 208097), (170, 122410), (340, 61205), (425, 48964), (850, 24482), (1700, 12241)]