18622880

素因数分解:

$2^5\times 5^1\times {\mathrm{239}}^1\times {\mathrm{487}}^1$

素因数の和:741

約数の個数: 48

約数和(自身を含む): 44271360

約数和(自身を除く): 25648480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 239, 478, 487, 956, 974, 1195, 1912, 1948, 2390, 2435, 3824, 3896, 4780, 4870, 7648, 7792, 9560, 9740, 15584, 19120, 19480, 38240, 38960, 77920, 116393, 232786, 465572, 581965, 931144, 1163930, 1862288, 2327860, 3724576, 4655720, 9311440, 18622880]

約数ペア:

[(1, 18622880), (2, 9311440), (4, 4655720), (5, 3724576), (8, 2327860), (10, 1862288), (16, 1163930), (20, 931144), (32, 581965), (40, 465572), (80, 232786), (160, 116393), (239, 77920), (478, 38960), (487, 38240), (956, 19480), (974, 19120), (1195, 15584), (1912, 9740), (1948, 9560), (2390, 7792), (2435, 7648), (3824, 4870), (3896, 4780)]