20139920680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{252887}}^1$

素因数の和:253090

約数の個数: 64

約数和(自身を含む): 49707665280

約数和(自身を除く): 29567744600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 181, 220, 362, 440, 724, 905, 1448, 1810, 1991, 3620, 3982, 7240, 7964, 9955, 15928, 19910, 39820, 79640, 252887, 505774, 1011548, 1264435, 2023096, 2528870, 2781757, 5057740, 5563514, 10115480, 11127028, 13908785, 22254056, 27817570, 45772547, 55635140, 91545094, 111270280, 183090188, 228862735, 366180376, 457725470, 503498017, 915450940, 1006996034, 1830901880, 2013992068, 2517490085, 4027984136, 5034980170, 10069960340, 20139920680]

約数ペア:

[(1, 20139920680), (2, 10069960340), (4, 5034980170), (5, 4027984136), (8, 2517490085), (10, 2013992068), (11, 1830901880), (20, 1006996034), (22, 915450940), (40, 503498017), (44, 457725470), (55, 366180376), (88, 228862735), (110, 183090188), (181, 111270280), (220, 91545094), (362, 55635140), (440, 45772547), (724, 27817570), (905, 22254056), (1448, 13908785), (1810, 11127028), (1991, 10115480), (3620, 5563514), (3982, 5057740), (7240, 2781757), (7964, 2528870), (9955, 2023096), (15928, 1264435), (19910, 1011548), (39820, 505774), (79640, 252887)]