20810548

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:149

約数の個数: 72

約数和(自身を含む): 44092160

約数和(自身を除く): 23281612

約数列:

[1, 2, 4, 11, 19, 22, 31, 38, 44, 62, 73, 76, 121, 124, 146, 209, 242, 292, 341, 418, 484, 589, 682, 803, 836, 1178, 1364, 1387, 1606, 2263, 2299, 2356, 2774, 3212, 3751, 4526, 4598, 5548, 6479, 7502, 8833, 9052, 9196, 12958, 15004, 15257, 17666, 24893, 25916, 30514, 35332, 42997, 49786, 61028, 71269, 85994, 99572, 142538, 167827, 171988, 273823, 285076, 335654, 472967, 547646, 671308, 945934, 1095292, 1891868, 5202637, 10405274, 20810548]

約数ペア:

[(1, 20810548), (2, 10405274), (4, 5202637), (11, 1891868), (19, 1095292), (22, 945934), (31, 671308), (38, 547646), (44, 472967), (62, 335654), (73, 285076), (76, 273823), (121, 171988), (124, 167827), (146, 142538), (209, 99572), (242, 85994), (292, 71269), (341, 61028), (418, 49786), (484, 42997), (589, 35332), (682, 30514), (803, 25916), (836, 24893), (1178, 17666), (1364, 15257), (1387, 15004), (1606, 12958), (2263, 9196), (2299, 9052), (2356, 8833), (2774, 7502), (3212, 6479), (3751, 5548), (4526, 4598)]