19681020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2063}}^1$

素因数の和:2131

約数の個数: 72

約数和(自身を含む): 60854976

約数和(自身を除く): 41173956

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 212, 265, 318, 477, 530, 636, 795, 954, 1060, 1590, 1908, 2063, 2385, 3180, 4126, 4770, 6189, 8252, 9540, 10315, 12378, 18567, 20630, 24756, 30945, 37134, 41260, 61890, 74268, 92835, 109339, 123780, 185670, 218678, 328017, 371340, 437356, 546695, 656034, 984051, 1093390, 1312068, 1640085, 1968102, 2186780, 3280170, 3936204, 4920255, 6560340, 9840510, 19681020]

約数ペア:

[(1, 19681020), (2, 9840510), (3, 6560340), (4, 4920255), (5, 3936204), (6, 3280170), (9, 2186780), (10, 1968102), (12, 1640085), (15, 1312068), (18, 1093390), (20, 984051), (30, 656034), (36, 546695), (45, 437356), (53, 371340), (60, 328017), (90, 218678), (106, 185670), (159, 123780), (180, 109339), (212, 92835), (265, 74268), (318, 61890), (477, 41260), (530, 37134), (636, 30945), (795, 24756), (954, 20630), (1060, 18567), (1590, 12378), (1908, 10315), (2063, 9540), (2385, 8252), (3180, 6189), (4126, 4770)]