71697920

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{4001}}^1$

素因数の和:4031

約数の個数: 80

約数和(自身を含む): 196514208

約数和(自身を除く): 124816288

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, 4001, 4480, 8002, 8960, 16004, 17920, 20005, 28007, 32008, 40010, 56014, 64016, 80020, 112028, 128032, 140035, 160040, 224056, 256064, 280070, 320080, 448112, 512128, 560140, 640160, 896224, 1024256, 1120280, 1280320, 1792448, 2048512, 2240560, 2560640, 3584896, 4481120, 5121280, 7169792, 8962240, 10242560, 14339584, 17924480, 35848960, 71697920]

約数ペア:

[(1, 71697920), (2, 35848960), (4, 17924480), (5, 14339584), (7, 10242560), (8, 8962240), (10, 7169792), (14, 5121280), (16, 4481120), (20, 3584896), (28, 2560640), (32, 2240560), (35, 2048512), (40, 1792448), (56, 1280320), (64, 1120280), (70, 1024256), (80, 896224), (112, 640160), (128, 560140), (140, 512128), (160, 448112), (224, 320080), (256, 280070), (280, 256064), (320, 224056), (448, 160040), (512, 140035), (560, 128032), (640, 112028), (896, 80020), (1120, 64016), (1280, 56014), (1792, 40010), (2240, 32008), (2560, 28007), (3584, 20005), (4001, 17920), (4480, 16004), (8002, 8960)]