18446536880

素因数分解:

$2^4\times 5^1\times {\mathrm{230581711}}^1$

素因数の和:230581724

約数の個数: 20

約数和(自身を含む): 42888198432

約数和(自身を除く): 24441661552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 230581711, 461163422, 922326844, 1152908555, 1844653688, 2305817110, 3689307376, 4611634220, 9223268440, 18446536880]

約数ペア:

[(1, 18446536880), (2, 9223268440), (4, 4611634220), (5, 3689307376), (8, 2305817110), (10, 1844653688), (16, 1152908555), (20, 922326844), (40, 461163422), (80, 230581711)]