81978632

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{5419}}^1$

素因数の和:5517

約数の個数: 32

約数和(自身を含む): 161299200

約数和(自身を除く): 79320568

約数列:

[1, 2, 4, 8, 31, 61, 62, 122, 124, 244, 248, 488, 1891, 3782, 5419, 7564, 10838, 15128, 21676, 43352, 167989, 330559, 335978, 661118, 671956, 1322236, 1343912, 2644472, 10247329, 20494658, 40989316, 81978632]

約数ペア:

[(1, 81978632), (2, 40989316), (4, 20494658), (8, 10247329), (31, 2644472), (61, 1343912), (62, 1322236), (122, 671956), (124, 661118), (244, 335978), (248, 330559), (488, 167989), (1891, 43352), (3782, 21676), (5419, 15128), (7564, 10838)]