31136580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{172981}}^1$

素因数の和:172996

約数の個数: 36

約数和(自身を含む): 94448172

約数和(自身を除く): 63311592

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 172981, 345962, 518943, 691924, 864905, 1037886, 1556829, 1729810, 2075772, 2594715, 3113658, 3459620, 5189430, 6227316, 7784145, 10378860, 15568290, 31136580]

約数ペア:

[(1, 31136580), (2, 15568290), (3, 10378860), (4, 7784145), (5, 6227316), (6, 5189430), (9, 3459620), (10, 3113658), (12, 2594715), (15, 2075772), (18, 1729810), (20, 1556829), (30, 1037886), (36, 864905), (45, 691924), (60, 518943), (90, 345962), (180, 172981)]