1268120

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{647}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 3324240

約数和(自身を除く): 2056120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 647, 980, 1294, 1960, 2588, 3235, 4529, 5176, 6470, 9058, 12940, 18116, 22645, 25880, 31703, 36232, 45290, 63406, 90580, 126812, 158515, 181160, 253624, 317030, 634060, 1268120]

約数ペア:

[(1, 1268120), (2, 634060), (4, 317030), (5, 253624), (7, 181160), (8, 158515), (10, 126812), (14, 90580), (20, 63406), (28, 45290), (35, 36232), (40, 31703), (49, 25880), (56, 22645), (70, 18116), (98, 12940), (140, 9058), (196, 6470), (245, 5176), (280, 4529), (392, 3235), (490, 2588), (647, 1960), (980, 1294)]