128908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:121

約数の個数: 24

約数和(自身を含む): 253232

約数和(自身を除く): 124324

約数列:

[1, 2, 4, 13, 26, 37, 52, 67, 74, 134, 148, 268, 481, 871, 962, 1742, 1924, 2479, 3484, 4958, 9916, 32227, 64454, 128908]

約数ペア:

[(1, 128908), (2, 64454), (4, 32227), (13, 9916), (26, 4958), (37, 3484), (52, 2479), (67, 1924), (74, 1742), (134, 962), (148, 871), (268, 481)]