20161255816

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{473981}}^1$

素因数の和:474409

約数の個数: 32

約数和(自身を含む): 40809850200

約数和(自身を除く): 20648594384

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 409, 818, 1636, 3272, 5317, 10634, 21268, 42536, 473981, 947962, 1895924, 3791848, 6161753, 12323506, 24647012, 49294024, 193858229, 387716458, 775432916, 1550865832, 2520156977, 5040313954, 10080627908, 20161255816]

約数ペア:

[(1, 20161255816), (2, 10080627908), (4, 5040313954), (8, 2520156977), (13, 1550865832), (26, 775432916), (52, 387716458), (104, 193858229), (409, 49294024), (818, 24647012), (1636, 12323506), (3272, 6161753), (5317, 3791848), (10634, 1895924), (21268, 947962), (42536, 473981)]