18880890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{89909}}^1$

素因数の和:89926

約数の個数: 32

約数和(自身を含む): 51788160

約数和(自身を除く): 32907270

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 89909, 179818, 269727, 449545, 539454, 629363, 899090, 1258726, 1348635, 1888089, 2697270, 3146815, 3776178, 6293630, 9440445, 18880890]

約数ペア:

[(1, 18880890), (2, 9440445), (3, 6293630), (5, 3776178), (6, 3146815), (7, 2697270), (10, 1888089), (14, 1348635), (15, 1258726), (21, 899090), (30, 629363), (35, 539454), (42, 449545), (70, 269727), (105, 179818), (210, 89909)]