261512640

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{90803}}^1$

素因数の和:90826

約数の個数: 84

約数和(自身を含む): 899504424

約数和(自身を除く): 637991784

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 240, 288, 320, 360, 480, 576, 720, 960, 1440, 2880, 90803, 181606, 272409, 363212, 454015, 544818, 726424, 817227, 908030, 1089636, 1362045, 1452848, 1634454, 1816060, 2179272, 2724090, 2905696, 3268908, 3632120, 4086135, 4358544, 5448180, 5811392, 6537816, 7264240, 8172270, 8717088, 10896360, 13075632, 14528480, 16344540, 17434176, 21792720, 26151264, 29056960, 32689080, 43585440, 52302528, 65378160, 87170880, 130756320, 261512640]

約数ペア:

[(1, 261512640), (2, 130756320), (3, 87170880), (4, 65378160), (5, 52302528), (6, 43585440), (8, 32689080), (9, 29056960), (10, 26151264), (12, 21792720), (15, 17434176), (16, 16344540), (18, 14528480), (20, 13075632), (24, 10896360), (30, 8717088), (32, 8172270), (36, 7264240), (40, 6537816), (45, 5811392), (48, 5448180), (60, 4358544), (64, 4086135), (72, 3632120), (80, 3268908), (90, 2905696), (96, 2724090), (120, 2179272), (144, 1816060), (160, 1634454), (180, 1452848), (192, 1362045), (240, 1089636), (288, 908030), (320, 817227), (360, 726424), (480, 544818), (576, 454015), (720, 363212), (960, 272409), (1440, 181606), (2880, 90803)]