15721380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{523}}^1$

素因数の和:705

約数の個数: 72

約数和(自身を含む): 48065472

約数和(自身を除く): 32344092

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 167, 180, 334, 501, 523, 668, 835, 1002, 1046, 1503, 1569, 1670, 2004, 2092, 2505, 2615, 3006, 3138, 3340, 4707, 5010, 5230, 6012, 6276, 7515, 7845, 9414, 10020, 10460, 15030, 15690, 18828, 23535, 30060, 31380, 47070, 87341, 94140, 174682, 262023, 349364, 436705, 524046, 786069, 873410, 1048092, 1310115, 1572138, 1746820, 2620230, 3144276, 3930345, 5240460, 7860690, 15721380]

約数ペア:

[(1, 15721380), (2, 7860690), (3, 5240460), (4, 3930345), (5, 3144276), (6, 2620230), (9, 1746820), (10, 1572138), (12, 1310115), (15, 1048092), (18, 873410), (20, 786069), (30, 524046), (36, 436705), (45, 349364), (60, 262023), (90, 174682), (167, 94140), (180, 87341), (334, 47070), (501, 31380), (523, 30060), (668, 23535), (835, 18828), (1002, 15690), (1046, 15030), (1503, 10460), (1569, 10020), (1670, 9414), (2004, 7845), (2092, 7515), (2505, 6276), (2615, 6012), (3006, 5230), (3138, 5010), (3340, 4707)]