18966690

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{353}}^1$

素因数の和:568

約数の個数: 64

約数和(自身を含む): 50976000

約数和(自身を除く): 32009310

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 199, 270, 353, 398, 597, 706, 995, 1059, 1194, 1765, 1791, 1990, 2118, 2985, 3177, 3530, 3582, 5295, 5373, 5970, 6354, 8955, 9531, 10590, 10746, 15885, 17910, 19062, 26865, 31770, 47655, 53730, 70247, 95310, 140494, 210741, 351235, 421482, 632223, 702470, 1053705, 1264446, 1896669, 2107410, 3161115, 3793338, 6322230, 9483345, 18966690]

約数ペア:

[(1, 18966690), (2, 9483345), (3, 6322230), (5, 3793338), (6, 3161115), (9, 2107410), (10, 1896669), (15, 1264446), (18, 1053705), (27, 702470), (30, 632223), (45, 421482), (54, 351235), (90, 210741), (135, 140494), (199, 95310), (270, 70247), (353, 53730), (398, 47655), (597, 31770), (706, 26865), (995, 19062), (1059, 17910), (1194, 15885), (1765, 10746), (1791, 10590), (1990, 9531), (2118, 8955), (2985, 6354), (3177, 5970), (3530, 5373), (3582, 5295)]