208781650

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:225

約数の個数: 144

約数和(自身を含む): 504824832

約数和(自身を除く): 296043182

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 49, 50, 55, 61, 70, 77, 98, 110, 122, 127, 154, 175, 245, 254, 275, 305, 350, 385, 427, 490, 539, 550, 610, 635, 671, 770, 854, 889, 1078, 1225, 1270, 1342, 1397, 1525, 1778, 1925, 2135, 2450, 2695, 2794, 2989, 3050, 3175, 3355, 3850, 4270, 4445, 4697, 5390, 5978, 6223, 6350, 6710, 6985, 7747, 8890, 9394, 9779, 10675, 12446, 13475, 13970, 14945, 15494, 16775, 19558, 21350, 22225, 23485, 26950, 29890, 31115, 32879, 33550, 34925, 38735, 44450, 46970, 48895, 54229, 62230, 65758, 68453, 69850, 74725, 77470, 85217, 97790, 108458, 117425, 136906, 149450, 155575, 164395, 170434, 193675, 234850, 244475, 271145, 311150, 328790, 342265, 379603, 387350, 426085, 488950, 542290, 596519, 684530, 759206, 821975, 852170, 1193038, 1355725, 1643950, 1711325, 1898015, 2130425, 2711450, 2982595, 3422650, 3796030, 4175633, 4260850, 5965190, 8351266, 9490075, 14912975, 18980150, 20878165, 29825950, 41756330, 104390825, 208781650]

約数ペア:

[(1, 208781650), (2, 104390825), (5, 41756330), (7, 29825950), (10, 20878165), (11, 18980150), (14, 14912975), (22, 9490075), (25, 8351266), (35, 5965190), (49, 4260850), (50, 4175633), (55, 3796030), (61, 3422650), (70, 2982595), (77, 2711450), (98, 2130425), (110, 1898015), (122, 1711325), (127, 1643950), (154, 1355725), (175, 1193038), (245, 852170), (254, 821975), (275, 759206), (305, 684530), (350, 596519), (385, 542290), (427, 488950), (490, 426085), (539, 387350), (550, 379603), (610, 342265), (635, 328790), (671, 311150), (770, 271145), (854, 244475), (889, 234850), (1078, 193675), (1225, 170434), (1270, 164395), (1342, 155575), (1397, 149450), (1525, 136906), (1778, 117425), (1925, 108458), (2135, 97790), (2450, 85217), (2695, 77470), (2794, 74725), (2989, 69850), (3050, 68453), (3175, 65758), (3355, 62230), (3850, 54229), (4270, 48895), (4445, 46970), (4697, 44450), (5390, 38735), (5978, 34925), (6223, 33550), (6350, 32879), (6710, 31115), (6985, 29890), (7747, 26950), (8890, 23485), (9394, 22225), (9779, 21350), (10675, 19558), (12446, 16775), (13475, 15494), (13970, 14945)]