56978920

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{20063}}^1$

素因数の和:20145

約数の個数: 32

約数和(自身を含む): 130014720

約数和(自身を除く): 73035800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 20063, 40126, 80252, 100315, 160504, 200630, 401260, 802520, 1424473, 2848946, 5697892, 7122365, 11395784, 14244730, 28489460, 56978920]

約数ペア:

[(1, 56978920), (2, 28489460), (4, 14244730), (5, 11395784), (8, 7122365), (10, 5697892), (20, 2848946), (40, 1424473), (71, 802520), (142, 401260), (284, 200630), (355, 160504), (568, 100315), (710, 80252), (1420, 40126), (2840, 20063)]