51800920

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{5039}}^1$

素因数の和:5307

約数の個数: 32

約数和(自身を含む): 117028800

約数和(自身を除く): 65227880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5039, 5140, 10078, 10280, 20156, 25195, 40312, 50390, 100780, 201560, 1295023, 2590046, 5180092, 6475115, 10360184, 12950230, 25900460, 51800920]

約数ペア:

[(1, 51800920), (2, 25900460), (4, 12950230), (5, 10360184), (8, 6475115), (10, 5180092), (20, 2590046), (40, 1295023), (257, 201560), (514, 100780), (1028, 50390), (1285, 40312), (2056, 25195), (2570, 20156), (5039, 10280), (5140, 10078)]