19801312

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{19961}}^1$

素因数の和:20002

約数の個数: 24

約数和(自身を含む): 40243392

約数和(自身を除く): 20442080

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 992, 19961, 39922, 79844, 159688, 319376, 618791, 638752, 1237582, 2475164, 4950328, 9900656, 19801312]

約数ペア:

[(1, 19801312), (2, 9900656), (4, 4950328), (8, 2475164), (16, 1237582), (31, 638752), (32, 618791), (62, 319376), (124, 159688), (248, 79844), (496, 39922), (992, 19961)]