88721920

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{4951}}^1$

素因数の和:4981

約数の個数: 80

約数和(自身を含む): 243163008

約数和(自身を除く): 154441088

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, 4951, 8960, 9902, 17920, 19804, 24755, 34657, 39608, 49510, 69314, 79216, 99020, 138628, 158432, 173285, 198040, 277256, 316864, 346570, 396080, 554512, 633728, 693140, 792160, 1109024, 1267456, 1386280, 1584320, 2218048, 2534912, 2772560, 3168640, 4436096, 5545120, 6337280, 8872192, 11090240, 12674560, 17744384, 22180480, 44360960, 88721920]

約数ペア:

[(1, 88721920), (2, 44360960), (4, 22180480), (5, 17744384), (7, 12674560), (8, 11090240), (10, 8872192), (14, 6337280), (16, 5545120), (20, 4436096), (28, 3168640), (32, 2772560), (35, 2534912), (40, 2218048), (56, 1584320), (64, 1386280), (70, 1267456), (80, 1109024), (112, 792160), (128, 693140), (140, 633728), (160, 554512), (224, 396080), (256, 346570), (280, 316864), (320, 277256), (448, 198040), (512, 173285), (560, 158432), (640, 138628), (896, 99020), (1120, 79216), (1280, 69314), (1792, 49510), (2240, 39608), (2560, 34657), (3584, 24755), (4480, 19804), (4951, 17920), (8960, 9902)]