161421820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{50131}}^1$

素因数の和:50170

約数の個数: 48

約数和(自身を含む): 404264448

約数和(自身を除く): 242842628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 50131, 100262, 200524, 250655, 350917, 501310, 701834, 1002620, 1153013, 1403668, 1754585, 2306026, 3509170, 4612052, 5765065, 7018340, 8071091, 11530130, 16142182, 23060260, 32284364, 40355455, 80710910, 161421820]

約数ペア:

[(1, 161421820), (2, 80710910), (4, 40355455), (5, 32284364), (7, 23060260), (10, 16142182), (14, 11530130), (20, 8071091), (23, 7018340), (28, 5765065), (35, 4612052), (46, 3509170), (70, 2306026), (92, 1754585), (115, 1403668), (140, 1153013), (161, 1002620), (230, 701834), (322, 501310), (460, 350917), (644, 250655), (805, 200524), (1610, 100262), (3220, 50131)]