20159320168

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{488261}}^1$

素因数の和:488677

約数の個数: 32

約数和(自身を含む): 40808937960

約数和(自身を除く): 20649617792

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 397, 794, 1588, 3176, 5161, 10322, 20644, 41288, 488261, 976522, 1953044, 3906088, 6347393, 12694786, 25389572, 50779144, 193839617, 387679234, 775358468, 1550716936, 2519915021, 5039830042, 10079660084, 20159320168]

約数ペア:

[(1, 20159320168), (2, 10079660084), (4, 5039830042), (8, 2519915021), (13, 1550716936), (26, 775358468), (52, 387679234), (104, 193839617), (397, 50779144), (794, 25389572), (1588, 12694786), (3176, 6347393), (5161, 3906088), (10322, 1953044), (20644, 976522), (41288, 488261)]