19745960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{127}}^1$

素因数の和:187

約数の個数: 96

約数和(自身を含む): 50595840

約数和(自身を除く): 30849880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 40, 46, 52, 65, 92, 104, 115, 127, 130, 169, 184, 230, 254, 260, 299, 338, 460, 508, 520, 598, 635, 676, 845, 920, 1016, 1196, 1270, 1352, 1495, 1651, 1690, 2392, 2540, 2921, 2990, 3302, 3380, 3887, 5080, 5842, 5980, 6604, 6760, 7774, 8255, 11684, 11960, 13208, 14605, 15548, 16510, 19435, 21463, 23368, 29210, 31096, 33020, 37973, 38870, 42926, 58420, 66040, 75946, 77740, 85852, 107315, 116840, 151892, 155480, 171704, 189865, 214630, 303784, 379730, 429260, 493649, 759460, 858520, 987298, 1518920, 1974596, 2468245, 3949192, 4936490, 9872980, 19745960]

約数ペア:

[(1, 19745960), (2, 9872980), (4, 4936490), (5, 3949192), (8, 2468245), (10, 1974596), (13, 1518920), (20, 987298), (23, 858520), (26, 759460), (40, 493649), (46, 429260), (52, 379730), (65, 303784), (92, 214630), (104, 189865), (115, 171704), (127, 155480), (130, 151892), (169, 116840), (184, 107315), (230, 85852), (254, 77740), (260, 75946), (299, 66040), (338, 58420), (460, 42926), (508, 38870), (520, 37973), (598, 33020), (635, 31096), (676, 29210), (845, 23368), (920, 21463), (1016, 19435), (1196, 16510), (1270, 15548), (1352, 14605), (1495, 13208), (1651, 11960), (1690, 11684), (2392, 8255), (2540, 7774), (2921, 6760), (2990, 6604), (3302, 5980), (3380, 5842), (3887, 5080)]