1380456890

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{269}}^1\times {\mathrm{5081}}^1$

素因数の和:5458

約数の個数: 32

約数和(自身を含む): 2519249040

約数和(自身を除く): 1138792150

約数列:

[1, 2, 5, 10, 101, 202, 269, 505, 538, 1010, 1345, 2690, 5081, 10162, 25405, 27169, 50810, 54338, 135845, 271690, 513181, 1026362, 1366789, 2565905, 2733578, 5131810, 6833945, 13667890, 138045689, 276091378, 690228445, 1380456890]

約数ペア:

[(1, 1380456890), (2, 690228445), (5, 276091378), (10, 138045689), (101, 13667890), (202, 6833945), (269, 5131810), (505, 2733578), (538, 2565905), (1010, 1366789), (1345, 1026362), (2690, 513181), (5081, 271690), (10162, 135845), (25405, 54338), (27169, 50810)]