18874570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:295

約数の個数: 64

約数和(自身を含む): 40715136

約数和(自身を除く): 21840566

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 67, 110, 130, 134, 143, 197, 286, 335, 394, 670, 715, 737, 871, 985, 1430, 1474, 1742, 1970, 2167, 2561, 3685, 4334, 4355, 5122, 7370, 8710, 9581, 10835, 12805, 13199, 19162, 21670, 25610, 26398, 28171, 47905, 56342, 65995, 95810, 131990, 140855, 145189, 171587, 281710, 290378, 343174, 725945, 857935, 1451890, 1715870, 1887457, 3774914, 9437285, 18874570]

約数ペア:

[(1, 18874570), (2, 9437285), (5, 3774914), (10, 1887457), (11, 1715870), (13, 1451890), (22, 857935), (26, 725945), (55, 343174), (65, 290378), (67, 281710), (110, 171587), (130, 145189), (134, 140855), (143, 131990), (197, 95810), (286, 65995), (335, 56342), (394, 47905), (670, 28171), (715, 26398), (737, 25610), (871, 21670), (985, 19162), (1430, 13199), (1474, 12805), (1742, 10835), (1970, 9581), (2167, 8710), (2561, 7370), (3685, 5122), (4334, 4355)]