51212560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{839}}^1$

素因数の和:968

約数の個数: 80

約数和(自身を含む): 137491200

約数和(自身を除く): 86278640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 109, 112, 140, 218, 280, 436, 545, 560, 763, 839, 872, 1090, 1526, 1678, 1744, 2180, 3052, 3356, 3815, 4195, 4360, 5873, 6104, 6712, 7630, 8390, 8720, 11746, 12208, 13424, 15260, 16780, 23492, 29365, 30520, 33560, 46984, 58730, 61040, 67120, 91451, 93968, 117460, 182902, 234920, 365804, 457255, 469840, 640157, 731608, 914510, 1280314, 1463216, 1829020, 2560628, 3200785, 3658040, 5121256, 6401570, 7316080, 10242512, 12803140, 25606280, 51212560]

約数ペア:

[(1, 51212560), (2, 25606280), (4, 12803140), (5, 10242512), (7, 7316080), (8, 6401570), (10, 5121256), (14, 3658040), (16, 3200785), (20, 2560628), (28, 1829020), (35, 1463216), (40, 1280314), (56, 914510), (70, 731608), (80, 640157), (109, 469840), (112, 457255), (140, 365804), (218, 234920), (280, 182902), (436, 117460), (545, 93968), (560, 91451), (763, 67120), (839, 61040), (872, 58730), (1090, 46984), (1526, 33560), (1678, 30520), (1744, 29365), (2180, 23492), (3052, 16780), (3356, 15260), (3815, 13424), (4195, 12208), (4360, 11746), (5873, 8720), (6104, 8390), (6712, 7630)]