64637920

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3181}}^1$

素因数の和:3323

約数の個数: 48

約数和(自身を含む): 153957888

約数和(自身を除く): 89319968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1270, 2032, 2540, 3181, 4064, 5080, 6362, 10160, 12724, 15905, 20320, 25448, 31810, 50896, 63620, 101792, 127240, 254480, 403987, 508960, 807974, 1615948, 2019935, 3231896, 4039870, 6463792, 8079740, 12927584, 16159480, 32318960, 64637920]

約数ペア:

[(1, 64637920), (2, 32318960), (4, 16159480), (5, 12927584), (8, 8079740), (10, 6463792), (16, 4039870), (20, 3231896), (32, 2019935), (40, 1615948), (80, 807974), (127, 508960), (160, 403987), (254, 254480), (508, 127240), (635, 101792), (1016, 63620), (1270, 50896), (2032, 31810), (2540, 25448), (3181, 20320), (4064, 15905), (5080, 12724), (6362, 10160)]