18987592

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:194

約数の個数: 64

約数和(自身を含む): 40466160

約数和(自身を除く): 21478568

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 61, 73, 82, 104, 122, 146, 164, 244, 292, 328, 488, 533, 584, 793, 949, 1066, 1586, 1898, 2132, 2501, 2993, 3172, 3796, 4264, 4453, 5002, 5986, 6344, 7592, 8906, 10004, 11972, 17812, 20008, 23944, 32513, 35624, 38909, 57889, 65026, 77818, 115778, 130052, 155636, 182573, 231556, 260104, 311272, 365146, 463112, 730292, 1460584, 2373449, 4746898, 9493796, 18987592]

約数ペア:

[(1, 18987592), (2, 9493796), (4, 4746898), (8, 2373449), (13, 1460584), (26, 730292), (41, 463112), (52, 365146), (61, 311272), (73, 260104), (82, 231556), (104, 182573), (122, 155636), (146, 130052), (164, 115778), (244, 77818), (292, 65026), (328, 57889), (488, 38909), (533, 35624), (584, 32513), (793, 23944), (949, 20008), (1066, 17812), (1586, 11972), (1898, 10004), (2132, 8906), (2501, 7592), (2993, 6344), (3172, 5986), (3796, 5002), (4264, 4453)]