20464220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{146173}}^1$

素因数の和:146189

約数の個数: 24

約数和(自身を含む): 49114464

約数和(自身を除く): 28650244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 146173, 292346, 584692, 730865, 1023211, 1461730, 2046422, 2923460, 4092844, 5116055, 10232110, 20464220]

約数ペア:

[(1, 20464220), (2, 10232110), (4, 5116055), (5, 4092844), (7, 2923460), (10, 2046422), (14, 1461730), (20, 1023211), (28, 730865), (35, 584692), (70, 292346), (140, 146173)]