20003538428

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{823}}^1\times {\mathrm{319811}}^1$

素因数の和:320657

約数の個数: 24

約数和(自身を含む): 36893512320

約数和(自身を除く): 16889973892

約数列:

[1, 2, 4, 19, 38, 76, 823, 1646, 3292, 15637, 31274, 62548, 319811, 639622, 1279244, 6076409, 12152818, 24305636, 263204453, 526408906, 1052817812, 5000884607, 10001769214, 20003538428]

約数ペア:

[(1, 20003538428), (2, 10001769214), (4, 5000884607), (19, 1052817812), (38, 526408906), (76, 263204453), (823, 24305636), (1646, 12152818), (3292, 6076409), (15637, 1279244), (31274, 639622), (62548, 319811)]