7857740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{191}}^1$

素因数の和:239

約数の個数: 72

約数和(自身を含む): 19305216

約数和(自身を除く): 11447476

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 121, 170, 187, 191, 220, 242, 340, 374, 382, 484, 605, 748, 764, 935, 955, 1210, 1870, 1910, 2057, 2101, 2420, 3247, 3740, 3820, 4114, 4202, 6494, 8228, 8404, 10285, 10505, 12988, 16235, 20570, 21010, 23111, 32470, 35717, 41140, 42020, 46222, 64940, 71434, 92444, 115555, 142868, 178585, 231110, 357170, 392887, 462220, 714340, 785774, 1571548, 1964435, 3928870, 7857740]

約数ペア:

[(1, 7857740), (2, 3928870), (4, 1964435), (5, 1571548), (10, 785774), (11, 714340), (17, 462220), (20, 392887), (22, 357170), (34, 231110), (44, 178585), (55, 142868), (68, 115555), (85, 92444), (110, 71434), (121, 64940), (170, 46222), (187, 42020), (191, 41140), (220, 35717), (242, 32470), (340, 23111), (374, 21010), (382, 20570), (484, 16235), (605, 12988), (748, 10505), (764, 10285), (935, 8404), (955, 8228), (1210, 6494), (1870, 4202), (1910, 4114), (2057, 3820), (2101, 3740), (2420, 3247)]