161728020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{1949}}^1$

素因数の和:2425

約数の個数: 72

約数和(自身を含む): 491891400

約数和(自身を除く): 330163380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 461, 922, 1383, 1844, 1949, 2305, 2766, 3898, 4149, 4610, 5532, 5847, 6915, 7796, 8298, 9220, 9745, 11694, 13830, 16596, 17541, 19490, 20745, 23388, 27660, 29235, 35082, 38980, 41490, 58470, 70164, 82980, 87705, 116940, 175410, 350820, 898489, 1796978, 2695467, 3593956, 4492445, 5390934, 8086401, 8984890, 10781868, 13477335, 16172802, 17969780, 26954670, 32345604, 40432005, 53909340, 80864010, 161728020]

約数ペア:

[(1, 161728020), (2, 80864010), (3, 53909340), (4, 40432005), (5, 32345604), (6, 26954670), (9, 17969780), (10, 16172802), (12, 13477335), (15, 10781868), (18, 8984890), (20, 8086401), (30, 5390934), (36, 4492445), (45, 3593956), (60, 2695467), (90, 1796978), (180, 898489), (461, 350820), (922, 175410), (1383, 116940), (1844, 87705), (1949, 82980), (2305, 70164), (2766, 58470), (3898, 41490), (4149, 38980), (4610, 35082), (5532, 29235), (5847, 27660), (6915, 23388), (7796, 20745), (8298, 19490), (9220, 17541), (9745, 16596), (11694, 13830)]