20209090

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:243

約数の個数: 64

約数和(自身を含む): 42830208

約数和(自身を除く): 22621118

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 101, 107, 110, 170, 187, 202, 214, 374, 505, 535, 935, 1010, 1070, 1111, 1177, 1717, 1819, 1870, 2222, 2354, 3434, 3638, 5555, 5885, 8585, 9095, 10807, 11110, 11770, 17170, 18190, 18887, 20009, 21614, 37774, 40018, 54035, 94435, 100045, 108070, 118877, 183719, 188870, 200090, 237754, 367438, 594385, 918595, 1188770, 1837190, 2020909, 4041818, 10104545, 20209090]

約数ペア:

[(1, 20209090), (2, 10104545), (5, 4041818), (10, 2020909), (11, 1837190), (17, 1188770), (22, 918595), (34, 594385), (55, 367438), (85, 237754), (101, 200090), (107, 188870), (110, 183719), (170, 118877), (187, 108070), (202, 100045), (214, 94435), (374, 54035), (505, 40018), (535, 37774), (935, 21614), (1010, 20009), (1070, 18887), (1111, 18190), (1177, 17170), (1717, 11770), (1819, 11110), (1870, 10807), (2222, 9095), (2354, 8585), (3434, 5885), (3638, 5555)]