19902816

素因数分解:

$2^5\times 3^2\times {\mathrm{29}}^1\times {\mathrm{2383}}^1$

素因数の和:2428

約数の個数: 72

約数和(自身を含む): 58574880

約数和(自身を除く): 38672064

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 29, 32, 36, 48, 58, 72, 87, 96, 116, 144, 174, 232, 261, 288, 348, 464, 522, 696, 928, 1044, 1392, 2088, 2383, 2784, 4176, 4766, 7149, 8352, 9532, 14298, 19064, 21447, 28596, 38128, 42894, 57192, 69107, 76256, 85788, 114384, 138214, 171576, 207321, 228768, 276428, 343152, 414642, 552856, 621963, 686304, 829284, 1105712, 1243926, 1658568, 2211424, 2487852, 3317136, 4975704, 6634272, 9951408, 19902816]

約数ペア:

[(1, 19902816), (2, 9951408), (3, 6634272), (4, 4975704), (6, 3317136), (8, 2487852), (9, 2211424), (12, 1658568), (16, 1243926), (18, 1105712), (24, 829284), (29, 686304), (32, 621963), (36, 552856), (48, 414642), (58, 343152), (72, 276428), (87, 228768), (96, 207321), (116, 171576), (144, 138214), (174, 114384), (232, 85788), (261, 76256), (288, 69107), (348, 57192), (464, 42894), (522, 38128), (696, 28596), (928, 21447), (1044, 19064), (1392, 14298), (2088, 9532), (2383, 8352), (2784, 7149), (4176, 4766)]