28391900

素因数分解:

$2^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{2927}}^1$

素因数の和:3038

約数の個数: 36

約数和(自身を含む): 62266848

約数和(自身を除く): 33874948

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 194, 388, 485, 970, 1940, 2425, 2927, 4850, 5854, 9700, 11708, 14635, 29270, 58540, 73175, 146350, 283919, 292700, 567838, 1135676, 1419595, 2839190, 5678380, 7097975, 14195950, 28391900]

約数ペア:

[(1, 28391900), (2, 14195950), (4, 7097975), (5, 5678380), (10, 2839190), (20, 1419595), (25, 1135676), (50, 567838), (97, 292700), (100, 283919), (194, 146350), (388, 73175), (485, 58540), (970, 29270), (1940, 14635), (2425, 11708), (2927, 9700), (4850, 5854)]