18868240

素因数分解:

$2^4\times 5^1\times {\mathrm{227}}^1\times {\mathrm{1039}}^1$

素因数の和:1279

約数の個数: 40

約数和(自身を含む): 44104320

約数和(自身を除く): 25236080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227, 454, 908, 1039, 1135, 1816, 2078, 2270, 3632, 4156, 4540, 5195, 8312, 9080, 10390, 16624, 18160, 20780, 41560, 83120, 235853, 471706, 943412, 1179265, 1886824, 2358530, 3773648, 4717060, 9434120, 18868240]

約数ペア:

[(1, 18868240), (2, 9434120), (4, 4717060), (5, 3773648), (8, 2358530), (10, 1886824), (16, 1179265), (20, 943412), (40, 471706), (80, 235853), (227, 83120), (454, 41560), (908, 20780), (1039, 18160), (1135, 16624), (1816, 10390), (2078, 9080), (2270, 8312), (3632, 5195), (4156, 4540)]