13720420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4261}}^1$

素因数の和:4300

約数の個数: 48

約数和(自身を含む): 34368768

約数和(自身を除く): 20648348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 4261, 8522, 17044, 21305, 29827, 42610, 59654, 85220, 98003, 119308, 149135, 196006, 298270, 392012, 490015, 596540, 686021, 980030, 1372042, 1960060, 2744084, 3430105, 6860210, 13720420]

約数ペア:

[(1, 13720420), (2, 6860210), (4, 3430105), (5, 2744084), (7, 1960060), (10, 1372042), (14, 980030), (20, 686021), (23, 596540), (28, 490015), (35, 392012), (46, 298270), (70, 196006), (92, 149135), (115, 119308), (140, 98003), (161, 85220), (230, 59654), (322, 42610), (460, 29827), (644, 21305), (805, 17044), (1610, 8522), (3220, 4261)]