18064660

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{227}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 39989376

約数和(自身を除く): 21924716

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 173, 227, 230, 346, 454, 460, 692, 865, 908, 1135, 1730, 2270, 3460, 3979, 4540, 5221, 7958, 10442, 15916, 19895, 20884, 26105, 39271, 39790, 52210, 78542, 79580, 104420, 157084, 196355, 392710, 785420, 903233, 1806466, 3612932, 4516165, 9032330, 18064660]

約数ペア:

[(1, 18064660), (2, 9032330), (4, 4516165), (5, 3612932), (10, 1806466), (20, 903233), (23, 785420), (46, 392710), (92, 196355), (115, 157084), (173, 104420), (227, 79580), (230, 78542), (346, 52210), (454, 39790), (460, 39271), (692, 26105), (865, 20884), (908, 19895), (1135, 15916), (1730, 10442), (2270, 7958), (3460, 5221), (3979, 4540)]