19680128

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{11827}}^1$

素因数の和:11854

約数の個数: 32

約数和(自身を含む): 42225960

約数和(自身を除く): 22545832

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 11827, 23654, 47308, 94616, 153751, 189232, 307502, 378464, 615004, 756928, 1230008, 1513856, 2460016, 4920032, 9840064, 19680128]

約数ペア:

[(1, 19680128), (2, 9840064), (4, 4920032), (8, 2460016), (13, 1513856), (16, 1230008), (26, 756928), (32, 615004), (52, 378464), (64, 307502), (104, 189232), (128, 153751), (208, 94616), (416, 47308), (832, 23654), (1664, 11827)]