128580872

素因数分解:

$2^3\times 7^1\times {\mathrm{97}}^1\times {\mathrm{23671}}^1$

素因数の和:23781

約数の個数: 32

約数和(自身を含む): 278382720

約数和(自身を除く): 149801848

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 97, 194, 388, 679, 776, 1358, 2716, 5432, 23671, 47342, 94684, 165697, 189368, 331394, 662788, 1325576, 2296087, 4592174, 9184348, 16072609, 18368696, 32145218, 64290436, 128580872]

約数ペア:

[(1, 128580872), (2, 64290436), (4, 32145218), (7, 18368696), (8, 16072609), (14, 9184348), (28, 4592174), (56, 2296087), (97, 1325576), (194, 662788), (388, 331394), (679, 189368), (776, 165697), (1358, 94684), (2716, 47342), (5432, 23671)]