81890550

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{25997}}^1$

素因数の和:26022

約数の個数: 72

約数和(自身を含む): 251452656

約数和(自身を除く): 169562106

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 75, 90, 105, 126, 150, 175, 210, 225, 315, 350, 450, 525, 630, 1050, 1575, 3150, 25997, 51994, 77991, 129985, 155982, 181979, 233973, 259970, 363958, 389955, 467946, 545937, 649925, 779910, 909895, 1091874, 1169865, 1299850, 1637811, 1819790, 1949775, 2339730, 2729685, 3275622, 3899550, 4549475, 5459370, 5849325, 8189055, 9098950, 11698650, 13648425, 16378110, 27296850, 40945275, 81890550]

約数ペア:

[(1, 81890550), (2, 40945275), (3, 27296850), (5, 16378110), (6, 13648425), (7, 11698650), (9, 9098950), (10, 8189055), (14, 5849325), (15, 5459370), (18, 4549475), (21, 3899550), (25, 3275622), (30, 2729685), (35, 2339730), (42, 1949775), (45, 1819790), (50, 1637811), (63, 1299850), (70, 1169865), (75, 1091874), (90, 909895), (105, 779910), (126, 649925), (150, 545937), (175, 467946), (210, 389955), (225, 363958), (315, 259970), (350, 233973), (450, 181979), (525, 155982), (630, 129985), (1050, 77991), (1575, 51994), (3150, 25997)]