387624980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{17929}}^1$

素因数の和:18008

約数の個数: 48

約数和(自身を含む): 867525120

約数和(自身を除く): 479900140

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 92, 94, 115, 188, 230, 235, 460, 470, 940, 1081, 2162, 4324, 5405, 10810, 17929, 21620, 35858, 71716, 89645, 179290, 358580, 412367, 824734, 842663, 1649468, 1685326, 2061835, 3370652, 4123670, 4213315, 8247340, 8426630, 16853260, 19381249, 38762498, 77524996, 96906245, 193812490, 387624980]

約数ペア:

[(1, 387624980), (2, 193812490), (4, 96906245), (5, 77524996), (10, 38762498), (20, 19381249), (23, 16853260), (46, 8426630), (47, 8247340), (92, 4213315), (94, 4123670), (115, 3370652), (188, 2061835), (230, 1685326), (235, 1649468), (460, 842663), (470, 824734), (940, 412367), (1081, 358580), (2162, 179290), (4324, 89645), (5405, 71716), (10810, 35858), (17929, 21620)]