13261840

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1709}}^1$

素因数の和:1819

約数の個数: 40

約数和(自身を含む): 31169880

約数和(自身を除く): 17908040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1709, 1940, 3418, 3880, 6836, 7760, 8545, 13672, 17090, 27344, 34180, 68360, 136720, 165773, 331546, 663092, 828865, 1326184, 1657730, 2652368, 3315460, 6630920, 13261840]

約数ペア:

[(1, 13261840), (2, 6630920), (4, 3315460), (5, 2652368), (8, 1657730), (10, 1326184), (16, 828865), (20, 663092), (40, 331546), (80, 165773), (97, 136720), (194, 68360), (388, 34180), (485, 27344), (776, 17090), (970, 13672), (1552, 8545), (1709, 7760), (1940, 6836), (3418, 3880)]