28877368

素因数分解:

$2^3\times {\mathrm{13}}^3\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:129

約数の個数: 64

約数和(自身を含む): 61689600

約数和(自身を除く): 32812232

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 53, 62, 104, 106, 124, 169, 212, 248, 338, 403, 424, 676, 689, 806, 1352, 1378, 1612, 1643, 2197, 2756, 3224, 3286, 4394, 5239, 5512, 6572, 8788, 8957, 10478, 13144, 17576, 17914, 20956, 21359, 35828, 41912, 42718, 68107, 71656, 85436, 116441, 136214, 170872, 232882, 272428, 277667, 465764, 544856, 555334, 931528, 1110668, 2221336, 3609671, 7219342, 14438684, 28877368]

約数ペア:

[(1, 28877368), (2, 14438684), (4, 7219342), (8, 3609671), (13, 2221336), (26, 1110668), (31, 931528), (52, 555334), (53, 544856), (62, 465764), (104, 277667), (106, 272428), (124, 232882), (169, 170872), (212, 136214), (248, 116441), (338, 85436), (403, 71656), (424, 68107), (676, 42718), (689, 41912), (806, 35828), (1352, 21359), (1378, 20956), (1612, 17914), (1643, 17576), (2197, 13144), (2756, 10478), (3224, 8957), (3286, 8788), (4394, 6572), (5239, 5512)]