81813480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{97397}}^1$

素因数の和:97418

約数の個数: 64

約数和(自身を含む): 280506240

約数和(自身を除く): 198692760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 97397, 194794, 292191, 389588, 486985, 584382, 681779, 779176, 973970, 1168764, 1363558, 1460955, 1947940, 2045337, 2337528, 2727116, 2921910, 3408895, 3895880, 4090674, 5454232, 5843820, 6817790, 8181348, 10226685, 11687640, 13635580, 16362696, 20453370, 27271160, 40906740, 81813480]

約数ペア:

[(1, 81813480), (2, 40906740), (3, 27271160), (4, 20453370), (5, 16362696), (6, 13635580), (7, 11687640), (8, 10226685), (10, 8181348), (12, 6817790), (14, 5843820), (15, 5454232), (20, 4090674), (21, 3895880), (24, 3408895), (28, 2921910), (30, 2727116), (35, 2337528), (40, 2045337), (42, 1947940), (56, 1460955), (60, 1363558), (70, 1168764), (84, 973970), (105, 779176), (120, 681779), (140, 584382), (168, 486985), (210, 389588), (280, 292191), (420, 194794), (840, 97397)]