19937260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{8377}}^1$

素因数の和:8410

約数の個数: 48

約数和(自身を含む): 50670144

約数和(自身を除く): 30732884

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 8377, 16754, 33508, 41885, 58639, 83770, 117278, 142409, 167540, 234556, 284818, 293195, 569636, 586390, 712045, 996863, 1172780, 1424090, 1993726, 2848180, 3987452, 4984315, 9968630, 19937260]

約数ペア:

[(1, 19937260), (2, 9968630), (4, 4984315), (5, 3987452), (7, 2848180), (10, 1993726), (14, 1424090), (17, 1172780), (20, 996863), (28, 712045), (34, 586390), (35, 569636), (68, 293195), (70, 284818), (85, 234556), (119, 167540), (140, 142409), (170, 117278), (238, 83770), (340, 58639), (476, 41885), (595, 33508), (1190, 16754), (2380, 8377)]