25195720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{331}}^1$

素因数の和:526

約数の個数: 64

約数和(自身を含む): 62389440

約数和(自身を除く): 37193720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 173, 220, 331, 346, 440, 662, 692, 865, 1324, 1384, 1655, 1730, 1903, 2648, 3310, 3460, 3641, 3806, 6620, 6920, 7282, 7612, 9515, 13240, 14564, 15224, 18205, 19030, 29128, 36410, 38060, 57263, 72820, 76120, 114526, 145640, 229052, 286315, 458104, 572630, 629893, 1145260, 1259786, 2290520, 2519572, 3149465, 5039144, 6298930, 12597860, 25195720]

約数ペア:

[(1, 25195720), (2, 12597860), (4, 6298930), (5, 5039144), (8, 3149465), (10, 2519572), (11, 2290520), (20, 1259786), (22, 1145260), (40, 629893), (44, 572630), (55, 458104), (88, 286315), (110, 229052), (173, 145640), (220, 114526), (331, 76120), (346, 72820), (440, 57263), (662, 38060), (692, 36410), (865, 29128), (1324, 19030), (1384, 18205), (1655, 15224), (1730, 14564), (1903, 13240), (2648, 9515), (3310, 7612), (3460, 7282), (3641, 6920), (3806, 6620)]