80238100

素因数分解:

$2^2\times 5^2\times {\mathrm{197}}^1\times {\mathrm{4073}}^1$

素因数の和:4284

約数の個数: 36

約数和(自身を含む): 175043484

約数和(自身を除く): 94805384

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 197, 394, 788, 985, 1970, 3940, 4073, 4925, 8146, 9850, 16292, 19700, 20365, 40730, 81460, 101825, 203650, 407300, 802381, 1604762, 3209524, 4011905, 8023810, 16047620, 20059525, 40119050, 80238100]

約数ペア:

[(1, 80238100), (2, 40119050), (4, 20059525), (5, 16047620), (10, 8023810), (20, 4011905), (25, 3209524), (50, 1604762), (100, 802381), (197, 407300), (394, 203650), (788, 101825), (985, 81460), (1970, 40730), (3940, 20365), (4073, 19700), (4925, 16292), (8146, 9850)]