20019768

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1021}}^1$

素因数の和:1092

約数の個数: 64

約数和(自身を含む): 53961600

約数和(自身を除く): 33941832

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 43, 57, 76, 86, 114, 129, 152, 172, 228, 258, 344, 456, 516, 817, 1021, 1032, 1634, 2042, 2451, 3063, 3268, 4084, 4902, 6126, 6536, 8168, 9804, 12252, 19399, 19608, 24504, 38798, 43903, 58197, 77596, 87806, 116394, 131709, 155192, 175612, 232788, 263418, 351224, 465576, 526836, 834157, 1053672, 1668314, 2502471, 3336628, 5004942, 6673256, 10009884, 20019768]

約数ペア:

[(1, 20019768), (2, 10009884), (3, 6673256), (4, 5004942), (6, 3336628), (8, 2502471), (12, 1668314), (19, 1053672), (24, 834157), (38, 526836), (43, 465576), (57, 351224), (76, 263418), (86, 232788), (114, 175612), (129, 155192), (152, 131709), (172, 116394), (228, 87806), (258, 77596), (344, 58197), (456, 43903), (516, 38798), (817, 24504), (1021, 19608), (1032, 19399), (1634, 12252), (2042, 9804), (2451, 8168), (3063, 6536), (3268, 6126), (4084, 4902)]