142809680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{389}}^1$

素因数の和:768

約数の個数: 80

約数和(自身を含む): 359508240

約数和(自身を除く): 216698560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 353, 389, 520, 706, 778, 1040, 1412, 1556, 1765, 1945, 2824, 3112, 3530, 3890, 4589, 5057, 5648, 6224, 7060, 7780, 9178, 10114, 14120, 15560, 18356, 20228, 22945, 25285, 28240, 31120, 36712, 40456, 45890, 50570, 73424, 80912, 91780, 101140, 137317, 183560, 202280, 274634, 367120, 404560, 549268, 686585, 1098536, 1373170, 1785121, 2197072, 2746340, 3570242, 5492680, 7140484, 8925605, 10985360, 14280968, 17851210, 28561936, 35702420, 71404840, 142809680]

約数ペア:

[(1, 142809680), (2, 71404840), (4, 35702420), (5, 28561936), (8, 17851210), (10, 14280968), (13, 10985360), (16, 8925605), (20, 7140484), (26, 5492680), (40, 3570242), (52, 2746340), (65, 2197072), (80, 1785121), (104, 1373170), (130, 1098536), (208, 686585), (260, 549268), (353, 404560), (389, 367120), (520, 274634), (706, 202280), (778, 183560), (1040, 137317), (1412, 101140), (1556, 91780), (1765, 80912), (1945, 73424), (2824, 50570), (3112, 45890), (3530, 40456), (3890, 36712), (4589, 31120), (5057, 28240), (5648, 25285), (6224, 22945), (7060, 20228), (7780, 18356), (9178, 15560), (10114, 14120)]