258551680

素因数分解:

$2^7\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3181}}^1$

素因数の和:3327

約数の個数: 64

約数和(自身を含む): 623162880

約数和(自身を除く): 364611200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 320, 508, 635, 640, 1016, 1270, 2032, 2540, 3181, 4064, 5080, 6362, 8128, 10160, 12724, 15905, 16256, 20320, 25448, 31810, 40640, 50896, 63620, 81280, 101792, 127240, 203584, 254480, 403987, 407168, 508960, 807974, 1017920, 1615948, 2019935, 2035840, 3231896, 4039870, 6463792, 8079740, 12927584, 16159480, 25855168, 32318960, 51710336, 64637920, 129275840, 258551680]

約数ペア:

[(1, 258551680), (2, 129275840), (4, 64637920), (5, 51710336), (8, 32318960), (10, 25855168), (16, 16159480), (20, 12927584), (32, 8079740), (40, 6463792), (64, 4039870), (80, 3231896), (127, 2035840), (128, 2019935), (160, 1615948), (254, 1017920), (320, 807974), (508, 508960), (635, 407168), (640, 403987), (1016, 254480), (1270, 203584), (2032, 127240), (2540, 101792), (3181, 81280), (4064, 63620), (5080, 50896), (6362, 40640), (8128, 31810), (10160, 25448), (12724, 20320), (15905, 16256)]