1902776560

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{1249}}^1$

素因数の和:1538

約数の個数: 80

約数和(自身を含む): 4491900000

約数和(自身を除く): 2589123440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 139, 274, 278, 548, 556, 685, 695, 1096, 1112, 1249, 1370, 1390, 2192, 2224, 2498, 2740, 2780, 4996, 5480, 5560, 6245, 9992, 10960, 11120, 12490, 19043, 19984, 24980, 38086, 49960, 76172, 95215, 99920, 152344, 171113, 173611, 190430, 304688, 342226, 347222, 380860, 684452, 694444, 761720, 855565, 868055, 1368904, 1388888, 1523440, 1711130, 1736110, 2737808, 2777776, 3422260, 3472220, 6844520, 6944440, 13689040, 13888880, 23784707, 47569414, 95138828, 118923535, 190277656, 237847070, 380555312, 475694140, 951388280, 1902776560]

約数ペア:

[(1, 1902776560), (2, 951388280), (4, 475694140), (5, 380555312), (8, 237847070), (10, 190277656), (16, 118923535), (20, 95138828), (40, 47569414), (80, 23784707), (137, 13888880), (139, 13689040), (274, 6944440), (278, 6844520), (548, 3472220), (556, 3422260), (685, 2777776), (695, 2737808), (1096, 1736110), (1112, 1711130), (1249, 1523440), (1370, 1388888), (1390, 1368904), (2192, 868055), (2224, 855565), (2498, 761720), (2740, 694444), (2780, 684452), (4996, 380860), (5480, 347222), (5560, 342226), (6245, 304688), (9992, 190430), (10960, 173611), (11120, 171113), (12490, 152344), (19043, 99920), (19984, 95215), (24980, 76172), (38086, 49960)]