21761569400

素因数分解:

$2^3\times 5^2\times {\mathrm{211}}^1\times {\mathrm{515677}}^1$

素因数の和:515904

約数の個数: 48

約数和(自身を含む): 50835537240

約数和(自身を除く): 29073967840

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 211, 422, 844, 1055, 1688, 2110, 4220, 5275, 8440, 10550, 21100, 42200, 515677, 1031354, 2062708, 2578385, 4125416, 5156770, 10313540, 12891925, 20627080, 25783850, 51567700, 103135400, 108807847, 217615694, 435231388, 544039235, 870462776, 1088078470, 2176156940, 2720196175, 4352313880, 5440392350, 10880784700, 21761569400]

約数ペア:

[(1, 21761569400), (2, 10880784700), (4, 5440392350), (5, 4352313880), (8, 2720196175), (10, 2176156940), (20, 1088078470), (25, 870462776), (40, 544039235), (50, 435231388), (100, 217615694), (200, 108807847), (211, 103135400), (422, 51567700), (844, 25783850), (1055, 20627080), (1688, 12891925), (2110, 10313540), (4220, 5156770), (5275, 4125416), (8440, 2578385), (10550, 2062708), (21100, 1031354), (42200, 515677)]