640269344

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:323

約数の個数: 144

約数和(自身を含む): 1527361920

約数和(自身を除く): 887092576

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 47, 52, 88, 94, 104, 143, 169, 176, 188, 208, 229, 286, 338, 352, 376, 416, 458, 517, 572, 611, 676, 752, 916, 1034, 1144, 1222, 1352, 1504, 1832, 1859, 2068, 2288, 2444, 2519, 2704, 2977, 3664, 3718, 4136, 4576, 4888, 5038, 5408, 5954, 6721, 7328, 7436, 7943, 8272, 9776, 10076, 10763, 11908, 13442, 14872, 15886, 16544, 19552, 20152, 21526, 23816, 26884, 29744, 31772, 32747, 38701, 40304, 43052, 47632, 53768, 59488, 63544, 65494, 77402, 80608, 86104, 87373, 95264, 107536, 118393, 127088, 130988, 139919, 154804, 172208, 174746, 215072, 236786, 254176, 261976, 279838, 309608, 344416, 349492, 425711, 473572, 523952, 559676, 619216, 698984, 851422, 947144, 1047904, 1119352, 1238432, 1397968, 1539109, 1702844, 1818947, 1894288, 2238704, 2795936, 3078218, 3405688, 3637894, 3788576, 4477408, 6156436, 6811376, 7275788, 12312872, 13622752, 14551576, 20008417, 24625744, 29103152, 40016834, 49251488, 58206304, 80033668, 160067336, 320134672, 640269344]

約数ペア:

[(1, 640269344), (2, 320134672), (4, 160067336), (8, 80033668), (11, 58206304), (13, 49251488), (16, 40016834), (22, 29103152), (26, 24625744), (32, 20008417), (44, 14551576), (47, 13622752), (52, 12312872), (88, 7275788), (94, 6811376), (104, 6156436), (143, 4477408), (169, 3788576), (176, 3637894), (188, 3405688), (208, 3078218), (229, 2795936), (286, 2238704), (338, 1894288), (352, 1818947), (376, 1702844), (416, 1539109), (458, 1397968), (517, 1238432), (572, 1119352), (611, 1047904), (676, 947144), (752, 851422), (916, 698984), (1034, 619216), (1144, 559676), (1222, 523952), (1352, 473572), (1504, 425711), (1832, 349492), (1859, 344416), (2068, 309608), (2288, 279838), (2444, 261976), (2519, 254176), (2704, 236786), (2977, 215072), (3664, 174746), (3718, 172208), (4136, 154804), (4576, 139919), (4888, 130988), (5038, 127088), (5408, 118393), (5954, 107536), (6721, 95264), (7328, 87373), (7436, 86104), (7943, 80608), (8272, 77402), (9776, 65494), (10076, 63544), (10763, 59488), (11908, 53768), (13442, 47632), (14872, 43052), (15886, 40304), (16544, 38701), (19552, 32747), (20152, 31772), (21526, 29744), (23816, 26884)]