28653220

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{21383}}^1$

素因数の和:21459

約数の個数: 24

約数和(自身を含む): 61072704

約数和(自身を除く): 32419484

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 21383, 42766, 85532, 106915, 213830, 427660, 1432661, 2865322, 5730644, 7163305, 14326610, 28653220]

約数ペア:

[(1, 28653220), (2, 14326610), (4, 7163305), (5, 5730644), (10, 2865322), (20, 1432661), (67, 427660), (134, 213830), (268, 106915), (335, 85532), (670, 42766), (1340, 21383)]