20555348560

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8288447}}^1$

素因数の和:8288491

約数の個数: 40

約数和(自身を含む): 49332842496

約数和(自身を除く): 28777493936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 8288447, 16576894, 33153788, 41442235, 66307576, 82884470, 132615152, 165768940, 256941857, 331537880, 513883714, 663075760, 1027767428, 1284709285, 2055534856, 2569418570, 4111069712, 5138837140, 10277674280, 20555348560]

約数ペア:

[(1, 20555348560), (2, 10277674280), (4, 5138837140), (5, 4111069712), (8, 2569418570), (10, 2055534856), (16, 1284709285), (20, 1027767428), (31, 663075760), (40, 513883714), (62, 331537880), (80, 256941857), (124, 165768940), (155, 132615152), (248, 82884470), (310, 66307576), (496, 41442235), (620, 33153788), (1240, 16576894), (2480, 8288447)]