19112380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{647}}^1$

素因数の和:874

約数の個数: 48

約数和(自身を含む): 46158336

約数和(自身を除く): 27045956

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 422, 647, 844, 1055, 1294, 1477, 2110, 2588, 2954, 3235, 4220, 4529, 5908, 6470, 7385, 9058, 12940, 14770, 18116, 22645, 29540, 45290, 90580, 136517, 273034, 546068, 682585, 955619, 1365170, 1911238, 2730340, 3822476, 4778095, 9556190, 19112380]

約数ペア:

[(1, 19112380), (2, 9556190), (4, 4778095), (5, 3822476), (7, 2730340), (10, 1911238), (14, 1365170), (20, 955619), (28, 682585), (35, 546068), (70, 273034), (140, 136517), (211, 90580), (422, 45290), (647, 29540), (844, 22645), (1055, 18116), (1294, 14770), (1477, 12940), (2110, 9058), (2588, 7385), (2954, 6470), (3235, 5908), (4220, 4529)]