68390920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:255

約数の個数: 96

約数和(自身を含む): 170233920

約数和(自身を除く): 101843000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 67, 104, 130, 134, 151, 169, 260, 268, 302, 335, 338, 520, 536, 604, 670, 676, 755, 845, 871, 1208, 1340, 1352, 1510, 1690, 1742, 1963, 2680, 3020, 3380, 3484, 3926, 4355, 6040, 6760, 6968, 7852, 8710, 9815, 10117, 11323, 15704, 17420, 19630, 20234, 22646, 25519, 34840, 39260, 40468, 45292, 50585, 51038, 56615, 78520, 80936, 90584, 101170, 102076, 113230, 127595, 131521, 202340, 204152, 226460, 255190, 263042, 404680, 452920, 510380, 526084, 657605, 1020760, 1052168, 1315210, 1709773, 2630420, 3419546, 5260840, 6839092, 8548865, 13678184, 17097730, 34195460, 68390920]

約数ペア:

[(1, 68390920), (2, 34195460), (4, 17097730), (5, 13678184), (8, 8548865), (10, 6839092), (13, 5260840), (20, 3419546), (26, 2630420), (40, 1709773), (52, 1315210), (65, 1052168), (67, 1020760), (104, 657605), (130, 526084), (134, 510380), (151, 452920), (169, 404680), (260, 263042), (268, 255190), (302, 226460), (335, 204152), (338, 202340), (520, 131521), (536, 127595), (604, 113230), (670, 102076), (676, 101170), (755, 90584), (845, 80936), (871, 78520), (1208, 56615), (1340, 51038), (1352, 50585), (1510, 45292), (1690, 40468), (1742, 39260), (1963, 34840), (2680, 25519), (3020, 22646), (3380, 20234), (3484, 19630), (3926, 17420), (4355, 15704), (6040, 11323), (6760, 10117), (6968, 9815), (7852, 8710)]