81185240

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{30293}}^1$

素因数の和:30371

約数の個数: 32

約数和(自身を含む): 185399280

約数和(自身を除く): 104214040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 30293, 60586, 121172, 151465, 242344, 302930, 605860, 1211720, 2029631, 4059262, 8118524, 10148155, 16237048, 20296310, 40592620, 81185240]

約数ペア:

[(1, 81185240), (2, 40592620), (4, 20296310), (5, 16237048), (8, 10148155), (10, 8118524), (20, 4059262), (40, 2029631), (67, 1211720), (134, 605860), (268, 302930), (335, 242344), (536, 151465), (670, 121172), (1340, 60586), (2680, 30293)]