171632780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{18143}}^1$

素因数の和:18206

約数の個数: 48

約数和(自身を含む): 402361344

約数和(自身を除く): 230728564

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 9460, 18143, 36286, 72572, 90715, 181430, 199573, 362860, 399146, 780149, 798292, 997865, 1560298, 1995730, 3120596, 3900745, 3991460, 7801490, 8581639, 15602980, 17163278, 34326556, 42908195, 85816390, 171632780]

約数ペア:

[(1, 171632780), (2, 85816390), (4, 42908195), (5, 34326556), (10, 17163278), (11, 15602980), (20, 8581639), (22, 7801490), (43, 3991460), (44, 3900745), (55, 3120596), (86, 1995730), (110, 1560298), (172, 997865), (215, 798292), (220, 780149), (430, 399146), (473, 362860), (860, 199573), (946, 181430), (1892, 90715), (2365, 72572), (4730, 36286), (9460, 18143)]