210325520

素因数分解:

$2^4\times 5^1\times {\mathrm{241}}^1\times {\mathrm{10909}}^1$

素因数の和:11163

約数の個数: 40

約数和(自身を含む): 491080920

約数和(自身を除く): 280755400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 241, 482, 964, 1205, 1928, 2410, 3856, 4820, 9640, 10909, 19280, 21818, 43636, 54545, 87272, 109090, 174544, 218180, 436360, 872720, 2629069, 5258138, 10516276, 13145345, 21032552, 26290690, 42065104, 52581380, 105162760, 210325520]

約数ペア:

[(1, 210325520), (2, 105162760), (4, 52581380), (5, 42065104), (8, 26290690), (10, 21032552), (16, 13145345), (20, 10516276), (40, 5258138), (80, 2629069), (241, 872720), (482, 436360), (964, 218180), (1205, 174544), (1928, 109090), (2410, 87272), (3856, 54545), (4820, 43636), (9640, 21818), (10909, 19280)]