20834480

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{271}}^1$

素因数の和:346

約数の個数: 60

約数和(自身を含む): 50237856

約数和(自身を除く): 29403376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 271, 310, 496, 542, 620, 961, 1084, 1240, 1355, 1922, 2168, 2480, 2710, 3844, 4336, 4805, 5420, 7688, 8401, 9610, 10840, 15376, 16802, 19220, 21680, 33604, 38440, 42005, 67208, 76880, 84010, 134416, 168020, 260431, 336040, 520862, 672080, 1041724, 1302155, 2083448, 2604310, 4166896, 5208620, 10417240, 20834480]

約数ペア:

[(1, 20834480), (2, 10417240), (4, 5208620), (5, 4166896), (8, 2604310), (10, 2083448), (16, 1302155), (20, 1041724), (31, 672080), (40, 520862), (62, 336040), (80, 260431), (124, 168020), (155, 134416), (248, 84010), (271, 76880), (310, 67208), (496, 42005), (542, 38440), (620, 33604), (961, 21680), (1084, 19220), (1240, 16802), (1355, 15376), (1922, 10840), (2168, 9610), (2480, 8401), (2710, 7688), (3844, 5420), (4336, 4805)]