81090990

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{233}}^1\times {\mathrm{1289}}^1$

素因数の和:1538

約数の個数: 64

約数和(自身を含む): 217339200

約数和(自身を除く): 136248210

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 233, 270, 466, 699, 1165, 1289, 1398, 2097, 2330, 2578, 3495, 3867, 4194, 6291, 6445, 6990, 7734, 10485, 11601, 12582, 12890, 19335, 20970, 23202, 31455, 34803, 38670, 58005, 62910, 69606, 116010, 174015, 300337, 348030, 600674, 901011, 1501685, 1802022, 2703033, 3003370, 4505055, 5406066, 8109099, 9010110, 13515165, 16218198, 27030330, 40545495, 81090990]

約数ペア:

[(1, 81090990), (2, 40545495), (3, 27030330), (5, 16218198), (6, 13515165), (9, 9010110), (10, 8109099), (15, 5406066), (18, 4505055), (27, 3003370), (30, 2703033), (45, 1802022), (54, 1501685), (90, 901011), (135, 600674), (233, 348030), (270, 300337), (466, 174015), (699, 116010), (1165, 69606), (1289, 62910), (1398, 58005), (2097, 38670), (2330, 34803), (2578, 31455), (3495, 23202), (3867, 20970), (4194, 19335), (6291, 12890), (6445, 12582), (6990, 11601), (7734, 10485)]