81575312

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{313}}^1$

素因数の和:520

約数の個数: 80

約数和(自身を含む): 196237440

約数和(自身を除く): 114662128

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 179, 182, 208, 313, 358, 364, 626, 716, 728, 1252, 1253, 1432, 1456, 2191, 2327, 2504, 2506, 2864, 4069, 4382, 4654, 5008, 5012, 8138, 8764, 9308, 10024, 16276, 16289, 17528, 18616, 20048, 28483, 32552, 32578, 35056, 37232, 56027, 56966, 65104, 65156, 112054, 113932, 130312, 224108, 227864, 260624, 392189, 448216, 455728, 728351, 784378, 896432, 1456702, 1568756, 2913404, 3137512, 5098457, 5826808, 6275024, 10196914, 11653616, 20393828, 40787656, 81575312]

約数ペア:

[(1, 81575312), (2, 40787656), (4, 20393828), (7, 11653616), (8, 10196914), (13, 6275024), (14, 5826808), (16, 5098457), (26, 3137512), (28, 2913404), (52, 1568756), (56, 1456702), (91, 896432), (104, 784378), (112, 728351), (179, 455728), (182, 448216), (208, 392189), (313, 260624), (358, 227864), (364, 224108), (626, 130312), (716, 113932), (728, 112054), (1252, 65156), (1253, 65104), (1432, 56966), (1456, 56027), (2191, 37232), (2327, 35056), (2504, 32578), (2506, 32552), (2864, 28483), (4069, 20048), (4382, 18616), (4654, 17528), (5008, 16289), (5012, 16276), (8138, 10024), (8764, 9308)]