18565890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{419}}^1$

素因数の和:647

約数の個数: 64

約数和(自身を含む): 51287040

約数和(自身を除く): 32721150

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 211, 419, 422, 633, 838, 1055, 1257, 1266, 1477, 2095, 2110, 2514, 2933, 2954, 3165, 4190, 4431, 5866, 6285, 6330, 7385, 8799, 8862, 12570, 14665, 14770, 17598, 22155, 29330, 43995, 44310, 87990, 88409, 176818, 265227, 442045, 530454, 618863, 884090, 1237726, 1326135, 1856589, 2652270, 3094315, 3713178, 6188630, 9282945, 18565890]

約数ペア:

[(1, 18565890), (2, 9282945), (3, 6188630), (5, 3713178), (6, 3094315), (7, 2652270), (10, 1856589), (14, 1326135), (15, 1237726), (21, 884090), (30, 618863), (35, 530454), (42, 442045), (70, 265227), (105, 176818), (210, 88409), (211, 87990), (419, 44310), (422, 43995), (633, 29330), (838, 22155), (1055, 17598), (1257, 14770), (1266, 14665), (1477, 12570), (2095, 8862), (2110, 8799), (2514, 7385), (2933, 6330), (2954, 6285), (3165, 5866), (4190, 4431)]