28780136

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2459}}^1$

素因数の和:2502

約数の個数: 64

約数和(自身を含む): 70848000

約数和(自身を除く): 42067864

約数列:

[1, 2, 4, 7, 8, 11, 14, 19, 22, 28, 38, 44, 56, 76, 77, 88, 133, 152, 154, 209, 266, 308, 418, 532, 616, 836, 1064, 1463, 1672, 2459, 2926, 4918, 5852, 9836, 11704, 17213, 19672, 27049, 34426, 46721, 54098, 68852, 93442, 108196, 137704, 186884, 189343, 216392, 327047, 373768, 378686, 513931, 654094, 757372, 1027862, 1308188, 1514744, 2055724, 2616376, 3597517, 4111448, 7195034, 14390068, 28780136]

約数ペア:

[(1, 28780136), (2, 14390068), (4, 7195034), (7, 4111448), (8, 3597517), (11, 2616376), (14, 2055724), (19, 1514744), (22, 1308188), (28, 1027862), (38, 757372), (44, 654094), (56, 513931), (76, 378686), (77, 373768), (88, 327047), (133, 216392), (152, 189343), (154, 186884), (209, 137704), (266, 108196), (308, 93442), (418, 68852), (532, 54098), (616, 46721), (836, 34426), (1064, 27049), (1463, 19672), (1672, 17213), (2459, 11704), (2926, 9836), (4918, 5852)]