278857992

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{21011}}^1$

素因数の和:21106

約数の個数: 64

約数和(自身を含む): 806860800

約数和(自身を除く): 528002808

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 79, 84, 158, 168, 237, 316, 474, 553, 632, 948, 1106, 1659, 1896, 2212, 3318, 4424, 6636, 13272, 21011, 42022, 63033, 84044, 126066, 147077, 168088, 252132, 294154, 441231, 504264, 588308, 882462, 1176616, 1659869, 1764924, 3319738, 3529848, 4979607, 6639476, 9959214, 11619083, 13278952, 19918428, 23238166, 34857249, 39836856, 46476332, 69714498, 92952664, 139428996, 278857992]

約数ペア:

[(1, 278857992), (2, 139428996), (3, 92952664), (4, 69714498), (6, 46476332), (7, 39836856), (8, 34857249), (12, 23238166), (14, 19918428), (21, 13278952), (24, 11619083), (28, 9959214), (42, 6639476), (56, 4979607), (79, 3529848), (84, 3319738), (158, 1764924), (168, 1659869), (237, 1176616), (316, 882462), (474, 588308), (553, 504264), (632, 441231), (948, 294154), (1106, 252132), (1659, 168088), (1896, 147077), (2212, 126066), (3318, 84044), (4424, 63033), (6636, 42022), (13272, 21011)]