19245680

素因数分解:

$2^4\times 5^1\times {\mathrm{240571}}^1$

素因数の和:240584

約数の個数: 20

約数和(自身を含む): 44746392

約数和(自身を除く): 25500712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 240571, 481142, 962284, 1202855, 1924568, 2405710, 3849136, 4811420, 9622840, 19245680]

約数ペア:

[(1, 19245680), (2, 9622840), (4, 4811420), (5, 3849136), (8, 2405710), (10, 1924568), (16, 1202855), (20, 962284), (40, 481142), (80, 240571)]