20218683850

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{2081}}^1\times {\mathrm{4519}}^1$

素因数の和:6655

約数の個数: 48

約数和(自身を含む): 38508338880

約数和(自身を除く): 18289655030

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 430, 1075, 2081, 2150, 4162, 4519, 9038, 10405, 20810, 22595, 45190, 52025, 89483, 104050, 112975, 178966, 194317, 225950, 388634, 447415, 894830, 971585, 1943170, 2237075, 4474150, 4857925, 9404039, 9715850, 18808078, 47020195, 94040390, 235100975, 404373677, 470201950, 808747354, 2021868385, 4043736770, 10109341925, 20218683850]

約数ペア:

[(1, 20218683850), (2, 10109341925), (5, 4043736770), (10, 2021868385), (25, 808747354), (43, 470201950), (50, 404373677), (86, 235100975), (215, 94040390), (430, 47020195), (1075, 18808078), (2081, 9715850), (2150, 9404039), (4162, 4857925), (4519, 4474150), (9038, 2237075), (10405, 1943170), (20810, 971585), (22595, 894830), (45190, 447415), (52025, 388634), (89483, 225950), (104050, 194317), (112975, 178966)]