128418368

素因数分解:

$2^6\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{383}}^1$

素因数の和:452

約数の個数: 84

約数和(自身を含む): 285585408

約数和(自身を除く): 157167040

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 169, 208, 248, 338, 383, 403, 416, 496, 676, 766, 806, 832, 992, 1352, 1532, 1612, 1984, 2704, 3064, 3224, 4979, 5239, 5408, 6128, 6448, 9958, 10478, 10816, 11873, 12256, 12896, 19916, 20956, 23746, 24512, 25792, 39832, 41912, 47492, 64727, 79664, 83824, 94984, 129454, 154349, 159328, 167648, 189968, 258908, 308698, 318656, 335296, 379936, 517816, 617396, 759872, 1035632, 1234792, 2006537, 2071264, 2469584, 4013074, 4142528, 4939168, 8026148, 9878336, 16052296, 32104592, 64209184, 128418368]

約数ペア:

[(1, 128418368), (2, 64209184), (4, 32104592), (8, 16052296), (13, 9878336), (16, 8026148), (26, 4939168), (31, 4142528), (32, 4013074), (52, 2469584), (62, 2071264), (64, 2006537), (104, 1234792), (124, 1035632), (169, 759872), (208, 617396), (248, 517816), (338, 379936), (383, 335296), (403, 318656), (416, 308698), (496, 258908), (676, 189968), (766, 167648), (806, 159328), (832, 154349), (992, 129454), (1352, 94984), (1532, 83824), (1612, 79664), (1984, 64727), (2704, 47492), (3064, 41912), (3224, 39832), (4979, 25792), (5239, 24512), (5408, 23746), (6128, 20956), (6448, 19916), (9958, 12896), (10478, 12256), (10816, 11873)]