51431320

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{14447}}^1$

素因数の和:14547

約数の個数: 32

約数和(自身を含む): 117028800

約数和(自身を除く): 65597480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 14447, 28894, 57788, 72235, 115576, 144470, 288940, 577880, 1285783, 2571566, 5143132, 6428915, 10286264, 12857830, 25715660, 51431320]

約数ペア:

[(1, 51431320), (2, 25715660), (4, 12857830), (5, 10286264), (8, 6428915), (10, 5143132), (20, 2571566), (40, 1285783), (89, 577880), (178, 288940), (356, 144470), (445, 115576), (712, 72235), (890, 57788), (1780, 28894), (3560, 14447)]