1388816

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{607}}^1$

素因数の和:639

約数の個数: 40

約数和(自身を含む): 3166464

約数和(自身を除く): 1777648

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 607, 1144, 1214, 2288, 2428, 4856, 6677, 7891, 9712, 13354, 15782, 26708, 31564, 53416, 63128, 86801, 106832, 126256, 173602, 347204, 694408, 1388816]

約数ペア:

[(1, 1388816), (2, 694408), (4, 347204), (8, 173602), (11, 126256), (13, 106832), (16, 86801), (22, 63128), (26, 53416), (44, 31564), (52, 26708), (88, 15782), (104, 13354), (143, 9712), (176, 7891), (208, 6677), (286, 4856), (572, 2428), (607, 2288), (1144, 1214)]