20657130

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{52967}}^1$

素因数の和:52990

約数の個数: 32

約数和(自身を含む): 53391744

約数和(自身を除く): 32734614

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 52967, 105934, 158901, 264835, 317802, 529670, 688571, 794505, 1377142, 1589010, 2065713, 3442855, 4131426, 6885710, 10328565, 20657130]

約数ペア:

[(1, 20657130), (2, 10328565), (3, 6885710), (5, 4131426), (6, 3442855), (10, 2065713), (13, 1589010), (15, 1377142), (26, 794505), (30, 688571), (39, 529670), (65, 317802), (78, 264835), (130, 158901), (195, 105934), (390, 52967)]