31319680

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{6991}}^1$

素因数の和:7017

約数の個数: 64

約数和(自身を含む): 85582080

約数和(自身を除く): 54262400

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, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 6991, 13982, 27964, 34955, 48937, 55928, 69910, 97874, 111856, 139820, 195748, 223712, 244685, 279640, 391496, 447424, 489370, 559280, 782992, 894848, 978740, 1118560, 1565984, 1957480, 2237120, 3131968, 3914960, 4474240, 6263936, 7829920, 15659840, 31319680]

約数ペア:

[(1, 31319680), (2, 15659840), (4, 7829920), (5, 6263936), (7, 4474240), (8, 3914960), (10, 3131968), (14, 2237120), (16, 1957480), (20, 1565984), (28, 1118560), (32, 978740), (35, 894848), (40, 782992), (56, 559280), (64, 489370), (70, 447424), (80, 391496), (112, 279640), (128, 244685), (140, 223712), (160, 195748), (224, 139820), (280, 111856), (320, 97874), (448, 69910), (560, 55928), (640, 48937), (896, 34955), (1120, 27964), (2240, 13982), (4480, 6991)]