25137920

素因数分解:

$2^8\times 5^1\times {\mathrm{41}}^1\times {\mathrm{479}}^1$

素因数の和:541

約数の個数: 72

約数和(自身を含む): 61810560

約数和(自身を除く): 36672640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 410, 479, 640, 656, 820, 958, 1280, 1312, 1640, 1916, 2395, 2624, 3280, 3832, 4790, 5248, 6560, 7664, 9580, 10496, 13120, 15328, 19160, 19639, 26240, 30656, 38320, 39278, 52480, 61312, 76640, 78556, 98195, 122624, 153280, 157112, 196390, 306560, 314224, 392780, 613120, 628448, 785560, 1256896, 1571120, 2513792, 3142240, 5027584, 6284480, 12568960, 25137920]

約数ペア:

[(1, 25137920), (2, 12568960), (4, 6284480), (5, 5027584), (8, 3142240), (10, 2513792), (16, 1571120), (20, 1256896), (32, 785560), (40, 628448), (41, 613120), (64, 392780), (80, 314224), (82, 306560), (128, 196390), (160, 157112), (164, 153280), (205, 122624), (256, 98195), (320, 78556), (328, 76640), (410, 61312), (479, 52480), (640, 39278), (656, 38320), (820, 30656), (958, 26240), (1280, 19639), (1312, 19160), (1640, 15328), (1916, 13120), (2395, 10496), (2624, 9580), (3280, 7664), (3832, 6560), (4790, 5248)]