389702990

素因数分解:

$2^1\times 5^1\times {\mathrm{269}}^1\times {\mathrm{277}}^1\times {\mathrm{523}}^1$

素因数の和:1076

約数の個数: 32

約数和(自身を含む): 707965920

約数和(自身を除く): 318262930

約数列:

[1, 2, 5, 10, 269, 277, 523, 538, 554, 1046, 1345, 1385, 2615, 2690, 2770, 5230, 74513, 140687, 144871, 149026, 281374, 289742, 372565, 703435, 724355, 745130, 1406870, 1448710, 38970299, 77940598, 194851495, 389702990]

約数ペア:

[(1, 389702990), (2, 194851495), (5, 77940598), (10, 38970299), (269, 1448710), (277, 1406870), (523, 745130), (538, 724355), (554, 703435), (1046, 372565), (1345, 289742), (1385, 281374), (2615, 149026), (2690, 144871), (2770, 140687), (5230, 74513)]