18843820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2917}}^1$

素因数の和:2962

約数の個数: 48

約数和(自身を含む): 44120160

約数和(自身を除く): 25276340

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 2917, 3230, 5834, 6460, 11668, 14585, 29170, 49589, 55423, 58340, 99178, 110846, 198356, 221692, 247945, 277115, 495890, 554230, 942191, 991780, 1108460, 1884382, 3768764, 4710955, 9421910, 18843820]

約数ペア:

[(1, 18843820), (2, 9421910), (4, 4710955), (5, 3768764), (10, 1884382), (17, 1108460), (19, 991780), (20, 942191), (34, 554230), (38, 495890), (68, 277115), (76, 247945), (85, 221692), (95, 198356), (170, 110846), (190, 99178), (323, 58340), (340, 55423), (380, 49589), (646, 29170), (1292, 14585), (1615, 11668), (2917, 6460), (3230, 5834)]