178158640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{11909}}^1$

素因数の和:11950

約数の個数: 80

約数和(自身を含む): 478496160

約数和(自身を除く): 300337520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1360, 1496, 1870, 2992, 3740, 7480, 11909, 14960, 23818, 47636, 59545, 95272, 119090, 130999, 190544, 202453, 238180, 261998, 404906, 476360, 523996, 654995, 809812, 952720, 1012265, 1047992, 1309990, 1619624, 2024530, 2095984, 2226983, 2619980, 3239248, 4049060, 4453966, 5239960, 8098120, 8907932, 10479920, 11134915, 16196240, 17815864, 22269830, 35631728, 44539660, 89079320, 178158640]

約数ペア:

[(1, 178158640), (2, 89079320), (4, 44539660), (5, 35631728), (8, 22269830), (10, 17815864), (11, 16196240), (16, 11134915), (17, 10479920), (20, 8907932), (22, 8098120), (34, 5239960), (40, 4453966), (44, 4049060), (55, 3239248), (68, 2619980), (80, 2226983), (85, 2095984), (88, 2024530), (110, 1619624), (136, 1309990), (170, 1047992), (176, 1012265), (187, 952720), (220, 809812), (272, 654995), (340, 523996), (374, 476360), (440, 404906), (680, 261998), (748, 238180), (880, 202453), (935, 190544), (1360, 130999), (1496, 119090), (1870, 95272), (2992, 59545), (3740, 47636), (7480, 23818), (11909, 14960)]