80379280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32411}}^1$

素因数の和:32455

約数の個数: 40

約数和(自身を含む): 192916224

約数和(自身を除く): 112536944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 32411, 64822, 129644, 162055, 259288, 324110, 518576, 648220, 1004741, 1296440, 2009482, 2592880, 4018964, 5023705, 8037928, 10047410, 16075856, 20094820, 40189640, 80379280]

約数ペア:

[(1, 80379280), (2, 40189640), (4, 20094820), (5, 16075856), (8, 10047410), (10, 8037928), (16, 5023705), (20, 4018964), (31, 2592880), (40, 2009482), (62, 1296440), (80, 1004741), (124, 648220), (155, 518576), (248, 324110), (310, 259288), (496, 162055), (620, 129644), (1240, 64822), (2480, 32411)]