207883520

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^2$

素因数の和:109

約数の個数: 162

約数和(自身を含む): 557150454

約数和(自身を除く): 349266934

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 169, 208, 248, 256, 260, 310, 320, 338, 403, 416, 496, 520, 620, 640, 676, 806, 832, 845, 961, 992, 1040, 1240, 1280, 1352, 1612, 1664, 1690, 1922, 1984, 2015, 2080, 2480, 2704, 3224, 3328, 3380, 3844, 3968, 4030, 4160, 4805, 4960, 5239, 5408, 6448, 6760, 7688, 7936, 8060, 8320, 9610, 9920, 10478, 10816, 12493, 12896, 13520, 15376, 16120, 16640, 19220, 19840, 20956, 21632, 24986, 25792, 26195, 27040, 30752, 32240, 38440, 39680, 41912, 43264, 49972, 51584, 52390, 54080, 61504, 62465, 64480, 76880, 83824, 99944, 103168, 104780, 108160, 123008, 124930, 128960, 153760, 162409, 167648, 199888, 209560, 216320, 246016, 249860, 257920, 307520, 324818, 335296, 399776, 419120, 499720, 515840, 615040, 649636, 670592, 799552, 812045, 838240, 999440, 1230080, 1299272, 1341184, 1599104, 1624090, 1676480, 1998880, 2598544, 3198208, 3248180, 3352960, 3997760, 5197088, 6496360, 6705920, 7995520, 10394176, 12992720, 15991040, 20788352, 25985440, 41576704, 51970880, 103941760, 207883520]

約数ペア:

[(1, 207883520), (2, 103941760), (4, 51970880), (5, 41576704), (8, 25985440), (10, 20788352), (13, 15991040), (16, 12992720), (20, 10394176), (26, 7995520), (31, 6705920), (32, 6496360), (40, 5197088), (52, 3997760), (62, 3352960), (64, 3248180), (65, 3198208), (80, 2598544), (104, 1998880), (124, 1676480), (128, 1624090), (130, 1599104), (155, 1341184), (160, 1299272), (169, 1230080), (208, 999440), (248, 838240), (256, 812045), (260, 799552), (310, 670592), (320, 649636), (338, 615040), (403, 515840), (416, 499720), (496, 419120), (520, 399776), (620, 335296), (640, 324818), (676, 307520), (806, 257920), (832, 249860), (845, 246016), (961, 216320), (992, 209560), (1040, 199888), (1240, 167648), (1280, 162409), (1352, 153760), (1612, 128960), (1664, 124930), (1690, 123008), (1922, 108160), (1984, 104780), (2015, 103168), (2080, 99944), (2480, 83824), (2704, 76880), (3224, 64480), (3328, 62465), (3380, 61504), (3844, 54080), (3968, 52390), (4030, 51584), (4160, 49972), (4805, 43264), (4960, 41912), (5239, 39680), (5408, 38440), (6448, 32240), (6760, 30752), (7688, 27040), (7936, 26195), (8060, 25792), (8320, 24986), (9610, 21632), (9920, 20956), (10478, 19840), (10816, 19220), (12493, 16640), (12896, 16120), (13520, 15376)]