30755320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{17881}}^1$

素因数の和:17935

約数の個数: 32

約数和(自身を含む): 70812720

約数和(自身を除く): 40057400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 17881, 35762, 71524, 89405, 143048, 178810, 357620, 715240, 768883, 1537766, 3075532, 3844415, 6151064, 7688830, 15377660, 30755320]

約数ペア:

[(1, 30755320), (2, 15377660), (4, 7688830), (5, 6151064), (8, 3844415), (10, 3075532), (20, 1537766), (40, 768883), (43, 715240), (86, 357620), (172, 178810), (215, 143048), (344, 89405), (430, 71524), (860, 35762), (1720, 17881)]