20667350

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{709}}^1$

素因数の和:785

約数の個数: 48

約数和(自身を含む): 42787440

約数和(自身を除く): 22120090

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 53, 55, 106, 110, 265, 275, 530, 550, 583, 709, 1166, 1325, 1418, 2650, 2915, 3545, 5830, 7090, 7799, 14575, 15598, 17725, 29150, 35450, 37577, 38995, 75154, 77990, 187885, 194975, 375770, 389950, 413347, 826694, 939425, 1878850, 2066735, 4133470, 10333675, 20667350]

約数ペア:

[(1, 20667350), (2, 10333675), (5, 4133470), (10, 2066735), (11, 1878850), (22, 939425), (25, 826694), (50, 413347), (53, 389950), (55, 375770), (106, 194975), (110, 187885), (265, 77990), (275, 75154), (530, 38995), (550, 37577), (583, 35450), (709, 29150), (1166, 17725), (1325, 15598), (1418, 14575), (2650, 7799), (2915, 7090), (3545, 5830)]