164556540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{6577}}^1$

素因数の和:6731

約数の個数: 72

約数和(自身を含む): 502822320

約数和(自身を除く): 338265780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 834, 1251, 1390, 1668, 2085, 2502, 2780, 4170, 5004, 6255, 6577, 8340, 12510, 13154, 19731, 25020, 26308, 32885, 39462, 59193, 65770, 78924, 98655, 118386, 131540, 197310, 236772, 295965, 394620, 591930, 914203, 1183860, 1828406, 2742609, 3656812, 4571015, 5485218, 8227827, 9142030, 10970436, 13713045, 16455654, 18284060, 27426090, 32911308, 41139135, 54852180, 82278270, 164556540]

約数ペア:

[(1, 164556540), (2, 82278270), (3, 54852180), (4, 41139135), (5, 32911308), (6, 27426090), (9, 18284060), (10, 16455654), (12, 13713045), (15, 10970436), (18, 9142030), (20, 8227827), (30, 5485218), (36, 4571015), (45, 3656812), (60, 2742609), (90, 1828406), (139, 1183860), (180, 914203), (278, 591930), (417, 394620), (556, 295965), (695, 236772), (834, 197310), (1251, 131540), (1390, 118386), (1668, 98655), (2085, 78924), (2502, 65770), (2780, 59193), (4170, 39462), (5004, 32885), (6255, 26308), (6577, 25020), (8340, 19731), (12510, 13154)]