28354420

素因数分解:

$2^2\times 5^1\times {\mathrm{367}}^1\times {\mathrm{3863}}^1$

素因数の和:4239

約数の個数: 24

約数和(自身を含む): 59721984

約数和(自身を除く): 31367564

約数列:

[1, 2, 4, 5, 10, 20, 367, 734, 1468, 1835, 3670, 3863, 7340, 7726, 15452, 19315, 38630, 77260, 1417721, 2835442, 5670884, 7088605, 14177210, 28354420]

約数ペア:

[(1, 28354420), (2, 14177210), (4, 7088605), (5, 5670884), (10, 2835442), (20, 1417721), (367, 77260), (734, 38630), (1468, 19315), (1835, 15452), (3670, 7726), (3863, 7340)]