20618028540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{456353}}^1$

素因数の和:456619

約数の個数: 72

約数和(自身を含む): 62790659568

約数和(自身を除く): 42172631028

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 251, 502, 753, 1004, 1255, 1506, 2259, 2510, 3012, 3765, 4518, 5020, 7530, 9036, 11295, 15060, 22590, 45180, 456353, 912706, 1369059, 1825412, 2281765, 2738118, 4107177, 4563530, 5476236, 6845295, 8214354, 9127060, 13690590, 16428708, 20535885, 27381180, 41071770, 82143540, 114544603, 229089206, 343633809, 458178412, 572723015, 687267618, 1030901427, 1145446030, 1374535236, 1718169045, 2061802854, 2290892060, 3436338090, 4123605708, 5154507135, 6872676180, 10309014270, 20618028540]

約数ペア:

[(1, 20618028540), (2, 10309014270), (3, 6872676180), (4, 5154507135), (5, 4123605708), (6, 3436338090), (9, 2290892060), (10, 2061802854), (12, 1718169045), (15, 1374535236), (18, 1145446030), (20, 1030901427), (30, 687267618), (36, 572723015), (45, 458178412), (60, 343633809), (90, 229089206), (180, 114544603), (251, 82143540), (502, 41071770), (753, 27381180), (1004, 20535885), (1255, 16428708), (1506, 13690590), (2259, 9127060), (2510, 8214354), (3012, 6845295), (3765, 5476236), (4518, 4563530), (5020, 4107177), (7530, 2738118), (9036, 2281765), (11295, 1825412), (15060, 1369059), (22590, 912706), (45180, 456353)]