81651856

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{281}}^1$

素因数の和:440

約数の個数: 80

約数和(自身を含む): 187987968

約数和(自身を除く): 106336112

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 127, 143, 176, 208, 254, 281, 286, 508, 562, 572, 1016, 1124, 1144, 1397, 1651, 2032, 2248, 2288, 2794, 3091, 3302, 3653, 4496, 5588, 6182, 6604, 7306, 11176, 12364, 13208, 14612, 18161, 22352, 24728, 26416, 29224, 35687, 36322, 40183, 49456, 58448, 71374, 72644, 80366, 142748, 145288, 160732, 285496, 290576, 321464, 392557, 463931, 570992, 642928, 785114, 927862, 1570228, 1855724, 3140456, 3711448, 5103241, 6280912, 7422896, 10206482, 20412964, 40825928, 81651856]

約数ペア:

[(1, 81651856), (2, 40825928), (4, 20412964), (8, 10206482), (11, 7422896), (13, 6280912), (16, 5103241), (22, 3711448), (26, 3140456), (44, 1855724), (52, 1570228), (88, 927862), (104, 785114), (127, 642928), (143, 570992), (176, 463931), (208, 392557), (254, 321464), (281, 290576), (286, 285496), (508, 160732), (562, 145288), (572, 142748), (1016, 80366), (1124, 72644), (1144, 71374), (1397, 58448), (1651, 49456), (2032, 40183), (2248, 36322), (2288, 35687), (2794, 29224), (3091, 26416), (3302, 24728), (3653, 22352), (4496, 18161), (5588, 14612), (6182, 13208), (6604, 12364), (7306, 11176)]