405981312

素因数分解:

$2^7\times 3^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{431}}^1$

素因数の和:682

約数の個数: 128

約数和(自身を含む): 1184440320

約数和(自身を除く): 778459008

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 64, 66, 88, 96, 128, 132, 176, 192, 223, 264, 352, 384, 431, 446, 528, 669, 704, 862, 892, 1056, 1293, 1338, 1408, 1724, 1784, 2112, 2453, 2586, 2676, 3448, 3568, 4224, 4741, 4906, 5172, 5352, 6896, 7136, 7359, 9482, 9812, 10344, 10704, 13792, 14223, 14272, 14718, 18964, 19624, 20688, 21408, 27584, 28446, 28544, 29436, 37928, 39248, 41376, 42816, 55168, 56892, 58872, 75856, 78496, 82752, 85632, 96113, 113784, 117744, 151712, 156992, 165504, 192226, 227568, 235488, 288339, 303424, 313984, 384452, 455136, 470976, 576678, 606848, 768904, 910272, 941952, 1057243, 1153356, 1537808, 1820544, 2114486, 2306712, 3075616, 3171729, 4228972, 4613424, 6151232, 6343458, 8457944, 9226848, 12302464, 12686916, 16915888, 18453696, 25373832, 33831776, 36907392, 50747664, 67663552, 101495328, 135327104, 202990656, 405981312]

約数ペア:

[(1, 405981312), (2, 202990656), (3, 135327104), (4, 101495328), (6, 67663552), (8, 50747664), (11, 36907392), (12, 33831776), (16, 25373832), (22, 18453696), (24, 16915888), (32, 12686916), (33, 12302464), (44, 9226848), (48, 8457944), (64, 6343458), (66, 6151232), (88, 4613424), (96, 4228972), (128, 3171729), (132, 3075616), (176, 2306712), (192, 2114486), (223, 1820544), (264, 1537808), (352, 1153356), (384, 1057243), (431, 941952), (446, 910272), (528, 768904), (669, 606848), (704, 576678), (862, 470976), (892, 455136), (1056, 384452), (1293, 313984), (1338, 303424), (1408, 288339), (1724, 235488), (1784, 227568), (2112, 192226), (2453, 165504), (2586, 156992), (2676, 151712), (3448, 117744), (3568, 113784), (4224, 96113), (4741, 85632), (4906, 82752), (5172, 78496), (5352, 75856), (6896, 58872), (7136, 56892), (7359, 55168), (9482, 42816), (9812, 41376), (10344, 39248), (10704, 37928), (13792, 29436), (14223, 28544), (14272, 28446), (14718, 27584), (18964, 21408), (19624, 20688)]