205961690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{173}}^1$

素因数の和:407

約数の個数: 64

約数和(自身を含む): 414927360

約数和(自身を除く): 208965670

約数列:

[1, 2, 5, 10, 11, 22, 55, 79, 110, 137, 158, 173, 274, 346, 395, 685, 790, 865, 869, 1370, 1507, 1730, 1738, 1903, 3014, 3806, 4345, 7535, 8690, 9515, 10823, 13667, 15070, 19030, 21646, 23701, 27334, 47402, 54115, 68335, 108230, 118505, 119053, 136670, 150337, 237010, 238106, 260711, 300674, 521422, 595265, 751685, 1190530, 1303555, 1503370, 1872379, 2607110, 3744758, 9361895, 18723790, 20596169, 41192338, 102980845, 205961690]

約数ペア:

[(1, 205961690), (2, 102980845), (5, 41192338), (10, 20596169), (11, 18723790), (22, 9361895), (55, 3744758), (79, 2607110), (110, 1872379), (137, 1503370), (158, 1303555), (173, 1190530), (274, 751685), (346, 595265), (395, 521422), (685, 300674), (790, 260711), (865, 238106), (869, 237010), (1370, 150337), (1507, 136670), (1730, 119053), (1738, 118505), (1903, 108230), (3014, 68335), (3806, 54115), (4345, 47402), (7535, 27334), (8690, 23701), (9515, 21646), (10823, 19030), (13667, 15070)]