20983230

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{53}}^2\times {\mathrm{83}}^1$

素因数の和:202

約数の個数: 72

約数和(自身を含む): 56275128

約数和(自身を除く): 35291898

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 53, 83, 90, 106, 159, 166, 249, 265, 318, 415, 477, 498, 530, 747, 795, 830, 954, 1245, 1494, 1590, 2385, 2490, 2809, 3735, 4399, 4770, 5618, 7470, 8427, 8798, 13197, 14045, 16854, 21995, 25281, 26394, 28090, 39591, 42135, 43990, 50562, 65985, 79182, 84270, 126405, 131970, 197955, 233147, 252810, 395910, 466294, 699441, 1165735, 1398882, 2098323, 2331470, 3497205, 4196646, 6994410, 10491615, 20983230]

約数ペア:

[(1, 20983230), (2, 10491615), (3, 6994410), (5, 4196646), (6, 3497205), (9, 2331470), (10, 2098323), (15, 1398882), (18, 1165735), (30, 699441), (45, 466294), (53, 395910), (83, 252810), (90, 233147), (106, 197955), (159, 131970), (166, 126405), (249, 84270), (265, 79182), (318, 65985), (415, 50562), (477, 43990), (498, 42135), (530, 39591), (747, 28090), (795, 26394), (830, 25281), (954, 21995), (1245, 16854), (1494, 14045), (1590, 13197), (2385, 8798), (2490, 8427), (2809, 7470), (3735, 5618), (4399, 4770)]