13115720

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2503}}^1$

素因数の和:2645

約数の個数: 32

約数和(自身を含む): 29747520

約数和(自身を除く): 16631800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2503, 2620, 5006, 5240, 10012, 12515, 20024, 25030, 50060, 100120, 327893, 655786, 1311572, 1639465, 2623144, 3278930, 6557860, 13115720]

約数ペア:

[(1, 13115720), (2, 6557860), (4, 3278930), (5, 2623144), (8, 1639465), (10, 1311572), (20, 655786), (40, 327893), (131, 100120), (262, 50060), (524, 25030), (655, 20024), (1048, 12515), (1310, 10012), (2503, 5240), (2620, 5006)]