20731392

素因数分解:

$2^9\times 3^2\times {\mathrm{11}}^1\times {\mathrm{409}}^1$

素因数の和:444

約数の個数: 120

約数和(自身を含む): 65431080

約数和(自身を除く): 44699688

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 32, 33, 36, 44, 48, 64, 66, 72, 88, 96, 99, 128, 132, 144, 176, 192, 198, 256, 264, 288, 352, 384, 396, 409, 512, 528, 576, 704, 768, 792, 818, 1056, 1152, 1227, 1408, 1536, 1584, 1636, 2112, 2304, 2454, 2816, 3168, 3272, 3681, 4224, 4499, 4608, 4908, 5632, 6336, 6544, 7362, 8448, 8998, 9816, 12672, 13088, 13497, 14724, 16896, 17996, 19632, 25344, 26176, 26994, 29448, 35992, 39264, 40491, 50688, 52352, 53988, 58896, 71984, 78528, 80982, 104704, 107976, 117792, 143968, 157056, 161964, 209408, 215952, 235584, 287936, 314112, 323928, 431904, 471168, 575872, 628224, 647856, 863808, 942336, 1151744, 1295712, 1727616, 1884672, 2303488, 2591424, 3455232, 5182848, 6910464, 10365696, 20731392]

約数ペア:

[(1, 20731392), (2, 10365696), (3, 6910464), (4, 5182848), (6, 3455232), (8, 2591424), (9, 2303488), (11, 1884672), (12, 1727616), (16, 1295712), (18, 1151744), (22, 942336), (24, 863808), (32, 647856), (33, 628224), (36, 575872), (44, 471168), (48, 431904), (64, 323928), (66, 314112), (72, 287936), (88, 235584), (96, 215952), (99, 209408), (128, 161964), (132, 157056), (144, 143968), (176, 117792), (192, 107976), (198, 104704), (256, 80982), (264, 78528), (288, 71984), (352, 58896), (384, 53988), (396, 52352), (409, 50688), (512, 40491), (528, 39264), (576, 35992), (704, 29448), (768, 26994), (792, 26176), (818, 25344), (1056, 19632), (1152, 17996), (1227, 16896), (1408, 14724), (1536, 13497), (1584, 13088), (1636, 12672), (2112, 9816), (2304, 8998), (2454, 8448), (2816, 7362), (3168, 6544), (3272, 6336), (3681, 5632), (4224, 4908), (4499, 4608)]