25489960

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{2423}}^1$

素因数の和:2697

約数の個数: 32

約数和(自身を含む): 57594240

約数和(自身を除く): 32104280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2423, 2630, 4846, 5260, 9692, 10520, 12115, 19384, 24230, 48460, 96920, 637249, 1274498, 2548996, 3186245, 5097992, 6372490, 12744980, 25489960]

約数ペア:

[(1, 25489960), (2, 12744980), (4, 6372490), (5, 5097992), (8, 3186245), (10, 2548996), (20, 1274498), (40, 637249), (263, 96920), (526, 48460), (1052, 24230), (1315, 19384), (2104, 12115), (2423, 10520), (2630, 9692), (4846, 5260)]