289730268

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{263}}^1\times {\mathrm{431}}^1$

素因数の和:775

約数の個数: 72

約数和(自身を含む): 747242496

約数和(自身を除く): 457512228

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 263, 284, 426, 431, 526, 639, 789, 852, 862, 1052, 1278, 1293, 1578, 1724, 2367, 2556, 2586, 3156, 3879, 4734, 5172, 7758, 9468, 15516, 18673, 30601, 37346, 56019, 61202, 74692, 91803, 112038, 113353, 122404, 168057, 183606, 224076, 226706, 275409, 336114, 340059, 367212, 453412, 550818, 672228, 680118, 1020177, 1101636, 1360236, 2040354, 4080708, 8048063, 16096126, 24144189, 32192252, 48288378, 72432567, 96576756, 144865134, 289730268]

約数ペア:

[(1, 289730268), (2, 144865134), (3, 96576756), (4, 72432567), (6, 48288378), (9, 32192252), (12, 24144189), (18, 16096126), (36, 8048063), (71, 4080708), (142, 2040354), (213, 1360236), (263, 1101636), (284, 1020177), (426, 680118), (431, 672228), (526, 550818), (639, 453412), (789, 367212), (852, 340059), (862, 336114), (1052, 275409), (1278, 226706), (1293, 224076), (1578, 183606), (1724, 168057), (2367, 122404), (2556, 113353), (2586, 112038), (3156, 91803), (3879, 74692), (4734, 61202), (5172, 56019), (7758, 37346), (9468, 30601), (15516, 18673)]