638748684

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{149101}}^1$

素因数の和:149135

約数の個数: 72

約数和(自身を含む): 1953832608

約数和(自身を除く): 1315083924

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 34, 36, 42, 51, 63, 68, 84, 102, 119, 126, 153, 204, 238, 252, 306, 357, 476, 612, 714, 1071, 1428, 2142, 4284, 149101, 298202, 447303, 596404, 894606, 1043707, 1341909, 1789212, 2087414, 2534717, 2683818, 3131121, 4174828, 5069434, 5367636, 6262242, 7604151, 9393363, 10138868, 12524484, 15208302, 17743019, 18786726, 22812453, 30416604, 35486038, 37573452, 45624906, 53229057, 70972076, 91249812, 106458114, 159687171, 212916228, 319374342, 638748684]

約数ペア:

[(1, 638748684), (2, 319374342), (3, 212916228), (4, 159687171), (6, 106458114), (7, 91249812), (9, 70972076), (12, 53229057), (14, 45624906), (17, 37573452), (18, 35486038), (21, 30416604), (28, 22812453), (34, 18786726), (36, 17743019), (42, 15208302), (51, 12524484), (63, 10138868), (68, 9393363), (84, 7604151), (102, 6262242), (119, 5367636), (126, 5069434), (153, 4174828), (204, 3131121), (238, 2683818), (252, 2534717), (306, 2087414), (357, 1789212), (476, 1341909), (612, 1043707), (714, 894606), (1071, 596404), (1428, 447303), (2142, 298202), (4284, 149101)]