20739780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1$

素因数の和:410

約数の個数: 96

約数和(自身を含む): 65184000

約数和(自身を除く): 44444220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 193, 199, 270, 386, 398, 540, 579, 597, 772, 796, 965, 995, 1158, 1194, 1737, 1791, 1930, 1990, 2316, 2388, 2895, 2985, 3474, 3582, 3860, 3980, 5211, 5373, 5790, 5970, 6948, 7164, 8685, 8955, 10422, 10746, 11580, 11940, 17370, 17910, 20844, 21492, 26055, 26865, 34740, 35820, 38407, 52110, 53730, 76814, 104220, 107460, 115221, 153628, 192035, 230442, 345663, 384070, 460884, 576105, 691326, 768140, 1036989, 1152210, 1382652, 1728315, 2073978, 2304420, 3456630, 4147956, 5184945, 6913260, 10369890, 20739780]

約数ペア:

[(1, 20739780), (2, 10369890), (3, 6913260), (4, 5184945), (5, 4147956), (6, 3456630), (9, 2304420), (10, 2073978), (12, 1728315), (15, 1382652), (18, 1152210), (20, 1036989), (27, 768140), (30, 691326), (36, 576105), (45, 460884), (54, 384070), (60, 345663), (90, 230442), (108, 192035), (135, 153628), (180, 115221), (193, 107460), (199, 104220), (270, 76814), (386, 53730), (398, 52110), (540, 38407), (579, 35820), (597, 34740), (772, 26865), (796, 26055), (965, 21492), (995, 20844), (1158, 17910), (1194, 17370), (1737, 11940), (1791, 11580), (1930, 10746), (1990, 10422), (2316, 8955), (2388, 8685), (2895, 7164), (2985, 6948), (3474, 5970), (3582, 5790), (3860, 5373), (3980, 5211)]