20061668

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 19855132

約数列:

[1, 2, 4, 11, 22, 44, 47, 89, 94, 109, 178, 188, 218, 356, 436, 517, 979, 1034, 1199, 1958, 2068, 2398, 3916, 4183, 4796, 5123, 8366, 9701, 10246, 16732, 19402, 20492, 38804, 46013, 56353, 92026, 106711, 112706, 184052, 213422, 225412, 426844, 455947, 911894, 1823788, 5015417, 10030834, 20061668]

約数ペア:

[(1, 20061668), (2, 10030834), (4, 5015417), (11, 1823788), (22, 911894), (44, 455947), (47, 426844), (89, 225412), (94, 213422), (109, 184052), (178, 112706), (188, 106711), (218, 92026), (356, 56353), (436, 46013), (517, 38804), (979, 20492), (1034, 19402), (1199, 16732), (1958, 10246), (2068, 9701), (2398, 8366), (3916, 5123), (4183, 4796)]