81838980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{3011}}^1$

素因数の和:3177

約数の個数: 72

約数和(自身を含む): 249971904

約数和(自身を除く): 168132924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 151, 180, 302, 453, 604, 755, 906, 1359, 1510, 1812, 2265, 2718, 3011, 3020, 4530, 5436, 6022, 6795, 9033, 9060, 12044, 13590, 15055, 18066, 27099, 27180, 30110, 36132, 45165, 54198, 60220, 90330, 108396, 135495, 180660, 270990, 454661, 541980, 909322, 1363983, 1818644, 2273305, 2727966, 4091949, 4546610, 5455932, 6819915, 8183898, 9093220, 13639830, 16367796, 20459745, 27279660, 40919490, 81838980]

約数ペア:

[(1, 81838980), (2, 40919490), (3, 27279660), (4, 20459745), (5, 16367796), (6, 13639830), (9, 9093220), (10, 8183898), (12, 6819915), (15, 5455932), (18, 4546610), (20, 4091949), (30, 2727966), (36, 2273305), (45, 1818644), (60, 1363983), (90, 909322), (151, 541980), (180, 454661), (302, 270990), (453, 180660), (604, 135495), (755, 108396), (906, 90330), (1359, 60220), (1510, 54198), (1812, 45165), (2265, 36132), (2718, 30110), (3011, 27180), (3020, 27099), (4530, 18066), (5436, 15055), (6022, 13590), (6795, 12044), (9033, 9060)]