18411280

素因数分解:

$2^4\times 5^1\times {\mathrm{373}}^1\times {\mathrm{617}}^1$

素因数の和:1003

約数の個数: 40

約数和(自身を含む): 42990552

約数和(自身を除く): 24579272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 373, 617, 746, 1234, 1492, 1865, 2468, 2984, 3085, 3730, 4936, 5968, 6170, 7460, 9872, 12340, 14920, 24680, 29840, 49360, 230141, 460282, 920564, 1150705, 1841128, 2301410, 3682256, 4602820, 9205640, 18411280]

約数ペア:

[(1, 18411280), (2, 9205640), (4, 4602820), (5, 3682256), (8, 2301410), (10, 1841128), (16, 1150705), (20, 920564), (40, 460282), (80, 230141), (373, 49360), (617, 29840), (746, 24680), (1234, 14920), (1492, 12340), (1865, 9872), (2468, 7460), (2984, 6170), (3085, 5968), (3730, 4936)]