28781144

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{281}}^1$

素因数の和:384

約数の個数: 64

約数和(自身を含む): 64972800

約数和(自身を除く): 36191656

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 59, 62, 118, 124, 217, 236, 248, 281, 413, 434, 472, 562, 826, 868, 1124, 1652, 1736, 1829, 1967, 2248, 3304, 3658, 3934, 7316, 7868, 8711, 12803, 14632, 15736, 16579, 17422, 25606, 33158, 34844, 51212, 60977, 66316, 69688, 102424, 116053, 121954, 132632, 232106, 243908, 464212, 487816, 513949, 928424, 1027898, 2055796, 3597643, 4111592, 7195286, 14390572, 28781144]

約数ペア:

[(1, 28781144), (2, 14390572), (4, 7195286), (7, 4111592), (8, 3597643), (14, 2055796), (28, 1027898), (31, 928424), (56, 513949), (59, 487816), (62, 464212), (118, 243908), (124, 232106), (217, 132632), (236, 121954), (248, 116053), (281, 102424), (413, 69688), (434, 66316), (472, 60977), (562, 51212), (826, 34844), (868, 33158), (1124, 25606), (1652, 17422), (1736, 16579), (1829, 15736), (1967, 14632), (2248, 12803), (3304, 8711), (3658, 7868), (3934, 7316)]