638640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{887}}^1$

素因数の和:906

約数の個数: 60

約数和(自身を含む): 2147184

約数和(自身を除く): 1508544

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 887, 1774, 2661, 3548, 4435, 5322, 7096, 7983, 8870, 10644, 13305, 14192, 15966, 17740, 21288, 26610, 31932, 35480, 39915, 42576, 53220, 63864, 70960, 79830, 106440, 127728, 159660, 212880, 319320, 638640]

約数ペア:

[(1, 638640), (2, 319320), (3, 212880), (4, 159660), (5, 127728), (6, 106440), (8, 79830), (9, 70960), (10, 63864), (12, 53220), (15, 42576), (16, 39915), (18, 35480), (20, 31932), (24, 26610), (30, 21288), (36, 17740), (40, 15966), (45, 14192), (48, 13305), (60, 10644), (72, 8870), (80, 7983), (90, 7096), (120, 5322), (144, 4435), (180, 3548), (240, 2661), (360, 1774), (720, 887)]