256438923816

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{311}}^1\times {\mathrm{13009}}^1$

素因数の和:13487

約数の個数: 128

約数和(自身を含む): 681932160000

約数和(自身を除く): 425493236184

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 139, 152, 228, 278, 311, 417, 456, 556, 622, 834, 933, 1112, 1244, 1668, 1866, 2488, 2641, 3336, 3732, 5282, 5909, 7464, 7923, 10564, 11818, 13009, 15846, 17727, 21128, 23636, 26018, 31692, 35454, 39027, 43229, 47272, 52036, 63384, 70908, 78054, 86458, 104072, 129687, 141816, 156108, 172916, 247171, 259374, 312216, 345832, 494342, 518748, 741513, 821351, 988684, 1037496, 1483026, 1642702, 1808251, 1977368, 2464053, 2966052, 3285404, 3616502, 4045799, 4928106, 5424753, 5932104, 6570808, 7233004, 8091598, 9856212, 10849506, 12137397, 14466008, 16183196, 19712424, 21699012, 24274794, 32366392, 34356769, 43398024, 48549588, 68713538, 76870181, 97099176, 103070307, 137427076, 153740362, 206140614, 230610543, 274854152, 307480724, 412281228, 461221086, 562366061, 614961448, 824562456, 922442172, 1124732122, 1687098183, 1844884344, 2249464244, 3374196366, 4498928488, 6748392732, 10684955159, 13496785464, 21369910318, 32054865477, 42739820636, 64109730954, 85479641272, 128219461908, 256438923816]

約数ペア:

[(1, 256438923816), (2, 128219461908), (3, 85479641272), (4, 64109730954), (6, 42739820636), (8, 32054865477), (12, 21369910318), (19, 13496785464), (24, 10684955159), (38, 6748392732), (57, 4498928488), (76, 3374196366), (114, 2249464244), (139, 1844884344), (152, 1687098183), (228, 1124732122), (278, 922442172), (311, 824562456), (417, 614961448), (456, 562366061), (556, 461221086), (622, 412281228), (834, 307480724), (933, 274854152), (1112, 230610543), (1244, 206140614), (1668, 153740362), (1866, 137427076), (2488, 103070307), (2641, 97099176), (3336, 76870181), (3732, 68713538), (5282, 48549588), (5909, 43398024), (7464, 34356769), (7923, 32366392), (10564, 24274794), (11818, 21699012), (13009, 19712424), (15846, 16183196), (17727, 14466008), (21128, 12137397), (23636, 10849506), (26018, 9856212), (31692, 8091598), (35454, 7233004), (39027, 6570808), (43229, 5932104), (47272, 5424753), (52036, 4928106), (63384, 4045799), (70908, 3616502), (78054, 3285404), (86458, 2966052), (104072, 2464053), (129687, 1977368), (141816, 1808251), (156108, 1642702), (172916, 1483026), (247171, 1037496), (259374, 988684), (312216, 821351), (345832, 741513), (494342, 518748)]