207977720

素因数分解:

$2^3\times 5^1\times {\mathrm{809}}^1\times {\mathrm{6427}}^1$

素因数の和:7247

約数の個数: 32

約数和(自身を含む): 468601200

約数和(自身を除く): 260623480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 809, 1618, 3236, 4045, 6427, 6472, 8090, 12854, 16180, 25708, 32135, 32360, 51416, 64270, 128540, 257080, 5199443, 10398886, 20797772, 25997215, 41595544, 51994430, 103988860, 207977720]

約数ペア:

[(1, 207977720), (2, 103988860), (4, 51994430), (5, 41595544), (8, 25997215), (10, 20797772), (20, 10398886), (40, 5199443), (809, 257080), (1618, 128540), (3236, 64270), (4045, 51416), (6427, 32360), (6472, 32135), (8090, 25708), (12854, 16180)]