20197616968

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{809}}^1\times {\mathrm{164251}}^1$

素因数の和:165085

約数の個数: 32

約数和(自身を含む): 39913236000

約数和(自身を除く): 19715619032

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 809, 1618, 3236, 6472, 15371, 30742, 61484, 122968, 164251, 328502, 657004, 1314008, 3120769, 6241538, 12483076, 24966152, 132879059, 265758118, 531516236, 1063032472, 2524702121, 5049404242, 10098808484, 20197616968]

約数ペア:

[(1, 20197616968), (2, 10098808484), (4, 5049404242), (8, 2524702121), (19, 1063032472), (38, 531516236), (76, 265758118), (152, 132879059), (809, 24966152), (1618, 12483076), (3236, 6241538), (6472, 3120769), (15371, 1314008), (30742, 657004), (61484, 328502), (122968, 164251)]