194651900

素因数分解:

$2^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{21871}}^1$

素因数の和:21974

約数の個数: 36

約数和(自身を含む): 427160160

約数和(自身を除く): 232508260

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 178, 356, 445, 890, 1780, 2225, 4450, 8900, 21871, 43742, 87484, 109355, 218710, 437420, 546775, 1093550, 1946519, 2187100, 3893038, 7786076, 9732595, 19465190, 38930380, 48662975, 97325950, 194651900]

約数ペア:

[(1, 194651900), (2, 97325950), (4, 48662975), (5, 38930380), (10, 19465190), (20, 9732595), (25, 7786076), (50, 3893038), (89, 2187100), (100, 1946519), (178, 1093550), (356, 546775), (445, 437420), (890, 218710), (1780, 109355), (2225, 87484), (4450, 43742), (8900, 21871)]