243964140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{82981}}^1$

素因数の和:83007

約数の個数: 72

約数和(自身を含む): 794635632

約数和(自身を除く): 550671492

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 82981, 165962, 248943, 331924, 414905, 497886, 580867, 829810, 995772, 1161734, 1244715, 1659620, 1742601, 2323468, 2489430, 2904335, 3485202, 4066069, 4978860, 5808670, 6970404, 8132138, 8713005, 11617340, 12198207, 16264276, 17426010, 20330345, 24396414, 34852020, 40660690, 48792828, 60991035, 81321380, 121982070, 243964140]

約数ペア:

[(1, 243964140), (2, 121982070), (3, 81321380), (4, 60991035), (5, 48792828), (6, 40660690), (7, 34852020), (10, 24396414), (12, 20330345), (14, 17426010), (15, 16264276), (20, 12198207), (21, 11617340), (28, 8713005), (30, 8132138), (35, 6970404), (42, 5808670), (49, 4978860), (60, 4066069), (70, 3485202), (84, 2904335), (98, 2489430), (105, 2323468), (140, 1742601), (147, 1659620), (196, 1244715), (210, 1161734), (245, 995772), (294, 829810), (420, 580867), (490, 497886), (588, 414905), (735, 331924), (980, 248943), (1470, 165962), (2940, 82981)]