28379312

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:250

約数の個数: 80

約数和(自身を含む): 64162560

約数和(自身を除く): 35783248

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 43, 52, 76, 86, 104, 152, 167, 172, 208, 247, 304, 334, 344, 494, 559, 668, 688, 817, 988, 1118, 1336, 1634, 1976, 2171, 2236, 2672, 3173, 3268, 3952, 4342, 4472, 6346, 6536, 7181, 8684, 8944, 10621, 12692, 13072, 14362, 17368, 21242, 25384, 28724, 34736, 41249, 42484, 50768, 57448, 82498, 84968, 93353, 114896, 136439, 164996, 169936, 186706, 272878, 329992, 373412, 545756, 659984, 746824, 1091512, 1493648, 1773707, 2183024, 3547414, 7094828, 14189656, 28379312]

約数ペア:

[(1, 28379312), (2, 14189656), (4, 7094828), (8, 3547414), (13, 2183024), (16, 1773707), (19, 1493648), (26, 1091512), (38, 746824), (43, 659984), (52, 545756), (76, 373412), (86, 329992), (104, 272878), (152, 186706), (167, 169936), (172, 164996), (208, 136439), (247, 114896), (304, 93353), (334, 84968), (344, 82498), (494, 57448), (559, 50768), (668, 42484), (688, 41249), (817, 34736), (988, 28724), (1118, 25384), (1336, 21242), (1634, 17368), (1976, 14362), (2171, 13072), (2236, 12692), (2672, 10621), (3173, 8944), (3268, 8684), (3952, 7181), (4342, 6536), (4472, 6346)]