81327540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8419}}^1$

素因数の和:8461

約数の個数: 96

約数和(自身を含む): 271595520

約数和(自身を除く): 190267980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 60, 69, 70, 84, 92, 105, 115, 138, 140, 161, 210, 230, 276, 322, 345, 420, 460, 483, 644, 690, 805, 966, 1380, 1610, 1932, 2415, 3220, 4830, 8419, 9660, 16838, 25257, 33676, 42095, 50514, 58933, 84190, 101028, 117866, 126285, 168380, 176799, 193637, 235732, 252570, 294665, 353598, 387274, 505140, 580911, 589330, 707196, 774548, 883995, 968185, 1161822, 1178660, 1355459, 1767990, 1936370, 2323644, 2710918, 2904555, 3535980, 3872740, 4066377, 5421836, 5809110, 6777295, 8132754, 11618220, 13554590, 16265508, 20331885, 27109180, 40663770, 81327540]

約数ペア:

[(1, 81327540), (2, 40663770), (3, 27109180), (4, 20331885), (5, 16265508), (6, 13554590), (7, 11618220), (10, 8132754), (12, 6777295), (14, 5809110), (15, 5421836), (20, 4066377), (21, 3872740), (23, 3535980), (28, 2904555), (30, 2710918), (35, 2323644), (42, 1936370), (46, 1767990), (60, 1355459), (69, 1178660), (70, 1161822), (84, 968185), (92, 883995), (105, 774548), (115, 707196), (138, 589330), (140, 580911), (161, 505140), (210, 387274), (230, 353598), (276, 294665), (322, 252570), (345, 235732), (420, 193637), (460, 176799), (483, 168380), (644, 126285), (690, 117866), (805, 101028), (966, 84190), (1380, 58933), (1610, 50514), (1932, 42095), (2415, 33676), (3220, 25257), (4830, 16838), (8419, 9660)]