320776456

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{977}}^1$

素因数の和:1055

約数の個数: 128

約数和(自身を含む): 828092160

約数和(自身を除く): 507315704

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 41, 44, 52, 56, 77, 82, 88, 91, 104, 143, 154, 164, 182, 286, 287, 308, 328, 364, 451, 533, 572, 574, 616, 728, 902, 977, 1001, 1066, 1144, 1148, 1804, 1954, 2002, 2132, 2296, 3157, 3608, 3731, 3908, 4004, 4264, 5863, 6314, 6839, 7462, 7816, 8008, 10747, 11726, 12628, 12701, 13678, 14924, 21494, 23452, 25256, 25402, 27356, 29848, 40057, 41041, 42988, 46904, 50804, 54712, 75229, 80114, 82082, 85976, 88907, 101608, 139711, 150458, 160228, 164164, 177814, 279422, 280399, 300916, 320456, 328328, 355628, 440627, 520741, 558844, 560798, 601832, 711256, 881254, 977977, 1041482, 1117688, 1121596, 1762508, 1955954, 2082964, 2243192, 3084389, 3525016, 3645187, 3911908, 4165928, 5728151, 6168778, 7290374, 7823816, 11456302, 12337556, 14580748, 22912604, 24675112, 29161496, 40097057, 45825208, 80194114, 160388228, 320776456]

約数ペア:

[(1, 320776456), (2, 160388228), (4, 80194114), (7, 45825208), (8, 40097057), (11, 29161496), (13, 24675112), (14, 22912604), (22, 14580748), (26, 12337556), (28, 11456302), (41, 7823816), (44, 7290374), (52, 6168778), (56, 5728151), (77, 4165928), (82, 3911908), (88, 3645187), (91, 3525016), (104, 3084389), (143, 2243192), (154, 2082964), (164, 1955954), (182, 1762508), (286, 1121596), (287, 1117688), (308, 1041482), (328, 977977), (364, 881254), (451, 711256), (533, 601832), (572, 560798), (574, 558844), (616, 520741), (728, 440627), (902, 355628), (977, 328328), (1001, 320456), (1066, 300916), (1144, 280399), (1148, 279422), (1804, 177814), (1954, 164164), (2002, 160228), (2132, 150458), (2296, 139711), (3157, 101608), (3608, 88907), (3731, 85976), (3908, 82082), (4004, 80114), (4264, 75229), (5863, 54712), (6314, 50804), (6839, 46904), (7462, 42988), (7816, 41041), (8008, 40057), (10747, 29848), (11726, 27356), (12628, 25402), (12701, 25256), (13678, 23452), (14924, 21494)]