1647674990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{178513}}^1$

素因数の和:178604

約数の個数: 32

約数和(自身を含む): 3238958016

約数和(自身を除く): 1591283026

約数列:

[1, 2, 5, 10, 13, 26, 65, 71, 130, 142, 355, 710, 923, 1846, 4615, 9230, 178513, 357026, 892565, 1785130, 2320669, 4641338, 11603345, 12674423, 23206690, 25348846, 63372115, 126744230, 164767499, 329534998, 823837495, 1647674990]

約数ペア:

[(1, 1647674990), (2, 823837495), (5, 329534998), (10, 164767499), (13, 126744230), (26, 63372115), (65, 25348846), (71, 23206690), (130, 12674423), (142, 11603345), (355, 4641338), (710, 2320669), (923, 1785130), (1846, 892565), (4615, 357026), (9230, 178513)]