20404920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1753}}^1$

素因数の和:1864

約数の個数: 64

約数和(自身を含む): 61881120

約数和(自身を除く): 41476200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 97, 120, 194, 291, 388, 485, 582, 776, 970, 1164, 1455, 1753, 1940, 2328, 2910, 3506, 3880, 5259, 5820, 7012, 8765, 10518, 11640, 14024, 17530, 21036, 26295, 35060, 42072, 52590, 70120, 105180, 170041, 210360, 340082, 510123, 680164, 850205, 1020246, 1360328, 1700410, 2040492, 2550615, 3400820, 4080984, 5101230, 6801640, 10202460, 20404920]

約数ペア:

[(1, 20404920), (2, 10202460), (3, 6801640), (4, 5101230), (5, 4080984), (6, 3400820), (8, 2550615), (10, 2040492), (12, 1700410), (15, 1360328), (20, 1020246), (24, 850205), (30, 680164), (40, 510123), (60, 340082), (97, 210360), (120, 170041), (194, 105180), (291, 70120), (388, 52590), (485, 42072), (582, 35060), (776, 26295), (970, 21036), (1164, 17530), (1455, 14024), (1753, 11640), (1940, 10518), (2328, 8765), (2910, 7012), (3506, 5820), (3880, 5259)]