81237960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1997}}^1$

素因数の和:2127

約数の個数: 96

約数和(自身を含む): 266493240

約数和(自身を除く): 185255280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 113, 120, 180, 226, 339, 360, 452, 565, 678, 904, 1017, 1130, 1356, 1695, 1997, 2034, 2260, 2712, 3390, 3994, 4068, 4520, 5085, 5991, 6780, 7988, 8136, 9985, 10170, 11982, 13560, 15976, 17973, 19970, 20340, 23964, 29955, 35946, 39940, 40680, 47928, 59910, 71892, 79880, 89865, 119820, 143784, 179730, 225661, 239640, 359460, 451322, 676983, 718920, 902644, 1128305, 1353966, 1805288, 2030949, 2256610, 2707932, 3384915, 4061898, 4513220, 5415864, 6769830, 8123796, 9026440, 10154745, 13539660, 16247592, 20309490, 27079320, 40618980, 81237960]

約数ペア:

[(1, 81237960), (2, 40618980), (3, 27079320), (4, 20309490), (5, 16247592), (6, 13539660), (8, 10154745), (9, 9026440), (10, 8123796), (12, 6769830), (15, 5415864), (18, 4513220), (20, 4061898), (24, 3384915), (30, 2707932), (36, 2256610), (40, 2030949), (45, 1805288), (60, 1353966), (72, 1128305), (90, 902644), (113, 718920), (120, 676983), (180, 451322), (226, 359460), (339, 239640), (360, 225661), (452, 179730), (565, 143784), (678, 119820), (904, 89865), (1017, 79880), (1130, 71892), (1356, 59910), (1695, 47928), (1997, 40680), (2034, 39940), (2260, 35946), (2712, 29955), (3390, 23964), (3994, 20340), (4068, 19970), (4520, 17973), (5085, 15976), (5991, 13560), (6780, 11982), (7988, 10170), (8136, 9985)]