201545840

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{28307}}^1$

素因数の和:28409

約数の個数: 40

約数和(自身を含む): 473875920

約数和(自身を除く): 272330080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 28307, 56614, 113228, 141535, 226456, 283070, 452912, 566140, 1132280, 2264560, 2519323, 5038646, 10077292, 12596615, 20154584, 25193230, 40309168, 50386460, 100772920, 201545840]

約数ペア:

[(1, 201545840), (2, 100772920), (4, 50386460), (5, 40309168), (8, 25193230), (10, 20154584), (16, 12596615), (20, 10077292), (40, 5038646), (80, 2519323), (89, 2264560), (178, 1132280), (356, 566140), (445, 452912), (712, 283070), (890, 226456), (1424, 141535), (1780, 113228), (3560, 56614), (7120, 28307)]