20914100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{5101}}^1$

素因数の和:5156

約数の個数: 36

約数和(自身を含む): 46499628

約数和(自身を除く): 25585528

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 5101, 10202, 20404, 25505, 51010, 102020, 127525, 209141, 255050, 418282, 510100, 836564, 1045705, 2091410, 4182820, 5228525, 10457050, 20914100]

約数ペア:

[(1, 20914100), (2, 10457050), (4, 5228525), (5, 4182820), (10, 2091410), (20, 1045705), (25, 836564), (41, 510100), (50, 418282), (82, 255050), (100, 209141), (164, 127525), (205, 102020), (410, 51010), (820, 25505), (1025, 20404), (2050, 10202), (4100, 5101)]