19656288

素因数分解:

$2^5\times 3^2\times {\mathrm{131}}^1\times {\mathrm{521}}^1$

素因数の和:668

約数の個数: 72

約数和(自身を含む): 56432376

約数和(自身を除く): 36776088

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 131, 144, 262, 288, 393, 521, 524, 786, 1042, 1048, 1179, 1563, 1572, 2084, 2096, 2358, 3126, 3144, 4168, 4192, 4689, 4716, 6252, 6288, 8336, 9378, 9432, 12504, 12576, 16672, 18756, 18864, 25008, 37512, 37728, 50016, 68251, 75024, 136502, 150048, 204753, 273004, 409506, 546008, 614259, 819012, 1092016, 1228518, 1638024, 2184032, 2457036, 3276048, 4914072, 6552096, 9828144, 19656288]

約数ペア:

[(1, 19656288), (2, 9828144), (3, 6552096), (4, 4914072), (6, 3276048), (8, 2457036), (9, 2184032), (12, 1638024), (16, 1228518), (18, 1092016), (24, 819012), (32, 614259), (36, 546008), (48, 409506), (72, 273004), (96, 204753), (131, 150048), (144, 136502), (262, 75024), (288, 68251), (393, 50016), (521, 37728), (524, 37512), (786, 25008), (1042, 18864), (1048, 18756), (1179, 16672), (1563, 12576), (1572, 12504), (2084, 9432), (2096, 9378), (2358, 8336), (3126, 6288), (3144, 6252), (4168, 4716), (4192, 4689)]