28387788

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:335

約数の個数: 96

約数和(自身を含む): 79252992

約数和(自身を除く): 50865204

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 71, 78, 132, 142, 143, 156, 213, 233, 284, 286, 426, 429, 466, 572, 699, 781, 852, 858, 923, 932, 1398, 1562, 1716, 1846, 2343, 2563, 2769, 2796, 3029, 3124, 3692, 4686, 5126, 5538, 6058, 7689, 9087, 9372, 10153, 10252, 11076, 12116, 15378, 16543, 18174, 20306, 30459, 30756, 33086, 33319, 36348, 40612, 49629, 60918, 66172, 66638, 99258, 99957, 121836, 133276, 181973, 198516, 199914, 215059, 363946, 399828, 430118, 545919, 645177, 727892, 860236, 1091838, 1290354, 2183676, 2365649, 2580708, 4731298, 7096947, 9462596, 14193894, 28387788]

約数ペア:

[(1, 28387788), (2, 14193894), (3, 9462596), (4, 7096947), (6, 4731298), (11, 2580708), (12, 2365649), (13, 2183676), (22, 1290354), (26, 1091838), (33, 860236), (39, 727892), (44, 645177), (52, 545919), (66, 430118), (71, 399828), (78, 363946), (132, 215059), (142, 199914), (143, 198516), (156, 181973), (213, 133276), (233, 121836), (284, 99957), (286, 99258), (426, 66638), (429, 66172), (466, 60918), (572, 49629), (699, 40612), (781, 36348), (852, 33319), (858, 33086), (923, 30756), (932, 30459), (1398, 20306), (1562, 18174), (1716, 16543), (1846, 15378), (2343, 12116), (2563, 11076), (2769, 10252), (2796, 10153), (3029, 9372), (3124, 9087), (3692, 7689), (4686, 6058), (5126, 5538)]