388549720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{17377}}^1$

素因数の和:17444

約数の個数: 64

約数和(自身を含む): 963436320

約数和(自身を除く): 574886600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 430, 520, 559, 860, 1118, 1720, 2236, 2795, 4472, 5590, 11180, 17377, 22360, 34754, 69508, 86885, 139016, 173770, 225901, 347540, 451802, 695080, 747211, 903604, 1129505, 1494422, 1807208, 2259010, 2988844, 3736055, 4518020, 5977688, 7472110, 9036040, 9713743, 14944220, 19427486, 29888440, 38854972, 48568715, 77709944, 97137430, 194274860, 388549720]

約数ペア:

[(1, 388549720), (2, 194274860), (4, 97137430), (5, 77709944), (8, 48568715), (10, 38854972), (13, 29888440), (20, 19427486), (26, 14944220), (40, 9713743), (43, 9036040), (52, 7472110), (65, 5977688), (86, 4518020), (104, 3736055), (130, 2988844), (172, 2259010), (215, 1807208), (260, 1494422), (344, 1129505), (430, 903604), (520, 747211), (559, 695080), (860, 451802), (1118, 347540), (1720, 225901), (2236, 173770), (2795, 139016), (4472, 86885), (5590, 69508), (11180, 34754), (17377, 22360)]