779636020

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{337}}^1\times {\mathrm{883}}^1$

素因数の和:1360

約数の個数: 48

約数和(自身を含む): 1656502848

約数和(自身を除く): 876866828

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 337, 524, 655, 674, 883, 1310, 1348, 1685, 1766, 2620, 3370, 3532, 4415, 6740, 8830, 17660, 44147, 88294, 115673, 176588, 220735, 231346, 297571, 441470, 462692, 578365, 595142, 882940, 1156730, 1190284, 1487855, 2313460, 2975710, 5951420, 38981801, 77963602, 155927204, 194909005, 389818010, 779636020]

約数ペア:

[(1, 779636020), (2, 389818010), (4, 194909005), (5, 155927204), (10, 77963602), (20, 38981801), (131, 5951420), (262, 2975710), (337, 2313460), (524, 1487855), (655, 1190284), (674, 1156730), (883, 882940), (1310, 595142), (1348, 578365), (1685, 462692), (1766, 441470), (2620, 297571), (3370, 231346), (3532, 220735), (4415, 176588), (6740, 115673), (8830, 88294), (17660, 44147)]