81991360

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23293}}^1$

素因数の和:23321

約数の個数: 56

約数和(自身を含む): 213000336

約数和(自身を除く): 131008976

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 23293, 46586, 93172, 116465, 186344, 232930, 256223, 372688, 465860, 512446, 745376, 931720, 1024892, 1281115, 1490752, 1863440, 2049784, 2562230, 3726880, 4099568, 5124460, 7453760, 8199136, 10248920, 16398272, 20497840, 40995680, 81991360]

約数ペア:

[(1, 81991360), (2, 40995680), (4, 20497840), (5, 16398272), (8, 10248920), (10, 8199136), (11, 7453760), (16, 5124460), (20, 4099568), (22, 3726880), (32, 2562230), (40, 2049784), (44, 1863440), (55, 1490752), (64, 1281115), (80, 1024892), (88, 931720), (110, 745376), (160, 512446), (176, 465860), (220, 372688), (320, 256223), (352, 232930), (440, 186344), (704, 116465), (880, 93172), (1760, 46586), (3520, 23293)]