20191628168

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{139}}^1\times {\mathrm{179}}^1\times {\mathrm{281}}^1$

素因数の和:643

約数の個数: 96

約数和(自身を含む): 40613076000

約数和(自身を除く): 20421447832

約数列:

[1, 2, 4, 8, 19, 38, 76, 139, 152, 179, 278, 281, 358, 361, 556, 562, 716, 722, 1112, 1124, 1432, 1444, 2248, 2641, 2888, 3401, 5282, 5339, 6802, 10564, 10678, 13604, 21128, 21356, 24881, 27208, 39059, 42712, 49762, 50179, 50299, 64619, 78118, 99524, 100358, 100598, 101441, 129238, 156236, 199048, 200716, 201196, 202882, 258476, 312472, 401432, 402392, 405764, 472739, 516952, 742121, 811528, 945478, 955681, 1484242, 1890956, 1911362, 2968484, 3781912, 3822724, 5936968, 6991561, 7645448, 8982041, 13983122, 14100299, 17964082, 18157939, 27966244, 28200598, 35928164, 36315878, 55932488, 56401196, 71856328, 72631756, 112802392, 132839659, 145263512, 265679318, 531358636, 1062717272, 2523953521, 5047907042, 10095814084, 20191628168]

約数ペア:

[(1, 20191628168), (2, 10095814084), (4, 5047907042), (8, 2523953521), (19, 1062717272), (38, 531358636), (76, 265679318), (139, 145263512), (152, 132839659), (179, 112802392), (278, 72631756), (281, 71856328), (358, 56401196), (361, 55932488), (556, 36315878), (562, 35928164), (716, 28200598), (722, 27966244), (1112, 18157939), (1124, 17964082), (1432, 14100299), (1444, 13983122), (2248, 8982041), (2641, 7645448), (2888, 6991561), (3401, 5936968), (5282, 3822724), (5339, 3781912), (6802, 2968484), (10564, 1911362), (10678, 1890956), (13604, 1484242), (21128, 955681), (21356, 945478), (24881, 811528), (27208, 742121), (39059, 516952), (42712, 472739), (49762, 405764), (50179, 402392), (50299, 401432), (64619, 312472), (78118, 258476), (99524, 202882), (100358, 201196), (100598, 200716), (101441, 199048), (129238, 156236)]