168621890

素因数分解:

$2^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1\times {\mathrm{1327}}^1$

素因数の和:1562

約数の個数: 32

約数和(自身を含む): 309222144

約数和(自身を除く): 140600254

約数列:

[1, 2, 5, 10, 97, 131, 194, 262, 485, 655, 970, 1310, 1327, 2654, 6635, 12707, 13270, 25414, 63535, 127070, 128719, 173837, 257438, 347674, 643595, 869185, 1287190, 1738370, 16862189, 33724378, 84310945, 168621890]

約数ペア:

[(1, 168621890), (2, 84310945), (5, 33724378), (10, 16862189), (97, 1738370), (131, 1287190), (194, 869185), (262, 643595), (485, 347674), (655, 257438), (970, 173837), (1310, 128719), (1327, 127070), (2654, 63535), (6635, 25414), (12707, 13270)]