1900128538

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1\times {\mathrm{971}}^1$

素因数の和:1219

約数の個数: 64

約数和(自身を含む): 3621252096

約数和(自身を除く): 1721123558

約数列:

[1, 2, 7, 11, 14, 22, 77, 97, 131, 154, 194, 262, 679, 917, 971, 1067, 1358, 1441, 1834, 1942, 2134, 2882, 6797, 7469, 10087, 10681, 12707, 13594, 14938, 20174, 21362, 25414, 74767, 88949, 94187, 127201, 139777, 149534, 177898, 188374, 254402, 279554, 659309, 890407, 978439, 1036057, 1318618, 1399211, 1780814, 1956878, 2072114, 2798422, 7252399, 9794477, 12338497, 14504798, 19588954, 24676994, 86369479, 135723467, 172738958, 271446934, 950064269, 1900128538]

約数ペア:

[(1, 1900128538), (2, 950064269), (7, 271446934), (11, 172738958), (14, 135723467), (22, 86369479), (77, 24676994), (97, 19588954), (131, 14504798), (154, 12338497), (194, 9794477), (262, 7252399), (679, 2798422), (917, 2072114), (971, 1956878), (1067, 1780814), (1358, 1399211), (1441, 1318618), (1834, 1036057), (1942, 978439), (2134, 890407), (2882, 659309), (6797, 279554), (7469, 254402), (10087, 188374), (10681, 177898), (12707, 149534), (13594, 139777), (14938, 127201), (20174, 94187), (21362, 88949), (25414, 74767)]