20130886580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{743}}^1\times {\mathrm{27647}}^1$

素因数の和:28413

約数の個数: 72

約数和(自身を含む): 49244848128

約数和(自身を除く): 29113961548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 743, 980, 1486, 2972, 3715, 5201, 7430, 10402, 14860, 20804, 26005, 27647, 36407, 52010, 55294, 72814, 104020, 110588, 138235, 145628, 182035, 193529, 276470, 364070, 387058, 552940, 728140, 774116, 967645, 1354703, 1935290, 2709406, 3870580, 5418812, 6773515, 13547030, 20541721, 27094060, 41083442, 82166884, 102708605, 143792047, 205417210, 287584094, 410834420, 575168188, 718960235, 1006544329, 1437920470, 2013088658, 2875840940, 4026177316, 5032721645, 10065443290, 20130886580]

約数ペア:

[(1, 20130886580), (2, 10065443290), (4, 5032721645), (5, 4026177316), (7, 2875840940), (10, 2013088658), (14, 1437920470), (20, 1006544329), (28, 718960235), (35, 575168188), (49, 410834420), (70, 287584094), (98, 205417210), (140, 143792047), (196, 102708605), (245, 82166884), (490, 41083442), (743, 27094060), (980, 20541721), (1486, 13547030), (2972, 6773515), (3715, 5418812), (5201, 3870580), (7430, 2709406), (10402, 1935290), (14860, 1354703), (20804, 967645), (26005, 774116), (27647, 728140), (36407, 552940), (52010, 387058), (55294, 364070), (72814, 276470), (104020, 193529), (110588, 182035), (138235, 145628)]