138718720

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{7741}}^1$

素因数の和:7771

約数の個数: 80

約数和(自身を含む): 380163168

約数和(自身を除く): 241444448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1120, 1280, 1792, 2240, 2560, 3584, 4480, 7741, 8960, 15482, 17920, 30964, 38705, 54187, 61928, 77410, 108374, 123856, 154820, 216748, 247712, 270935, 309640, 433496, 495424, 541870, 619280, 866992, 990848, 1083740, 1238560, 1733984, 1981696, 2167480, 2477120, 3467968, 3963392, 4334960, 4954240, 6935936, 8669920, 9908480, 13871872, 17339840, 19816960, 27743744, 34679680, 69359360, 138718720]

約数ペア:

[(1, 138718720), (2, 69359360), (4, 34679680), (5, 27743744), (7, 19816960), (8, 17339840), (10, 13871872), (14, 9908480), (16, 8669920), (20, 6935936), (28, 4954240), (32, 4334960), (35, 3963392), (40, 3467968), (56, 2477120), (64, 2167480), (70, 1981696), (80, 1733984), (112, 1238560), (128, 1083740), (140, 990848), (160, 866992), (224, 619280), (256, 541870), (280, 495424), (320, 433496), (448, 309640), (512, 270935), (560, 247712), (640, 216748), (896, 154820), (1120, 123856), (1280, 108374), (1792, 77410), (2240, 61928), (2560, 54187), (3584, 38705), (4480, 30964), (7741, 17920), (8960, 15482)]