18966272

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:209

約数の個数: 72

約数和(自身を含む): 42065520

約数和(自身を除く): 23099248

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 41, 52, 64, 82, 104, 128, 139, 164, 208, 256, 278, 328, 416, 533, 556, 656, 832, 1066, 1112, 1312, 1664, 1807, 2132, 2224, 2624, 3328, 3614, 4264, 4448, 5248, 5699, 7228, 8528, 8896, 10496, 11398, 14456, 17056, 17792, 22796, 28912, 34112, 35584, 45592, 57824, 68224, 74087, 91184, 115648, 136448, 148174, 182368, 231296, 296348, 364736, 462592, 592696, 729472, 1185392, 1458944, 2370784, 4741568, 9483136, 18966272]

約数ペア:

[(1, 18966272), (2, 9483136), (4, 4741568), (8, 2370784), (13, 1458944), (16, 1185392), (26, 729472), (32, 592696), (41, 462592), (52, 364736), (64, 296348), (82, 231296), (104, 182368), (128, 148174), (139, 136448), (164, 115648), (208, 91184), (256, 74087), (278, 68224), (328, 57824), (416, 45592), (533, 35584), (556, 34112), (656, 28912), (832, 22796), (1066, 17792), (1112, 17056), (1312, 14456), (1664, 11398), (1807, 10496), (2132, 8896), (2224, 8528), (2624, 7228), (3328, 5699), (3614, 5248), (4264, 4448)]