138795440

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{35407}}^1$

素因数の和:35434

約数の個数: 60

約数和(自身を含む): 375395616

約数和(自身を除く): 236600176

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 35407, 70814, 141628, 177035, 247849, 283256, 354070, 495698, 566512, 708140, 991396, 1239245, 1416280, 1734943, 1982792, 2478490, 2832560, 3469886, 3965584, 4956980, 6939772, 8674715, 9913960, 13879544, 17349430, 19827920, 27759088, 34698860, 69397720, 138795440]

約数ペア:

[(1, 138795440), (2, 69397720), (4, 34698860), (5, 27759088), (7, 19827920), (8, 17349430), (10, 13879544), (14, 9913960), (16, 8674715), (20, 6939772), (28, 4956980), (35, 3965584), (40, 3469886), (49, 2832560), (56, 2478490), (70, 1982792), (80, 1734943), (98, 1416280), (112, 1239245), (140, 991396), (196, 708140), (245, 566512), (280, 495698), (392, 354070), (490, 283256), (560, 247849), (784, 177035), (980, 141628), (1960, 70814), (3920, 35407)]