7490140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{7643}}^1$

素因数の和:7666

約数の個数: 36

約数和(自身を含む): 18299736

約数和(自身を除く): 10809596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 7643, 15286, 30572, 38215, 53501, 76430, 107002, 152860, 214004, 267505, 374507, 535010, 749014, 1070020, 1498028, 1872535, 3745070, 7490140]

約数ペア:

[(1, 7490140), (2, 3745070), (4, 1872535), (5, 1498028), (7, 1070020), (10, 749014), (14, 535010), (20, 374507), (28, 267505), (35, 214004), (49, 152860), (70, 107002), (98, 76430), (140, 53501), (196, 38215), (245, 30572), (490, 15286), (980, 7643)]