25253120

素因数分解:

$2^8\times 5^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:311

約数の個数: 72

約数和(自身を含む): 61381320

約数和(自身を除く): 36128200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 181, 218, 256, 320, 362, 436, 545, 640, 724, 872, 905, 1090, 1280, 1448, 1744, 1810, 2180, 2896, 3488, 3620, 4360, 5792, 6976, 7240, 8720, 11584, 13952, 14480, 17440, 19729, 23168, 27904, 28960, 34880, 39458, 46336, 57920, 69760, 78916, 98645, 115840, 139520, 157832, 197290, 231680, 315664, 394580, 631328, 789160, 1262656, 1578320, 2525312, 3156640, 5050624, 6313280, 12626560, 25253120]

約数ペア:

[(1, 25253120), (2, 12626560), (4, 6313280), (5, 5050624), (8, 3156640), (10, 2525312), (16, 1578320), (20, 1262656), (32, 789160), (40, 631328), (64, 394580), (80, 315664), (109, 231680), (128, 197290), (160, 157832), (181, 139520), (218, 115840), (256, 98645), (320, 78916), (362, 69760), (436, 57920), (545, 46336), (640, 39458), (724, 34880), (872, 28960), (905, 27904), (1090, 23168), (1280, 19729), (1448, 17440), (1744, 14480), (1810, 13952), (2180, 11584), (2896, 8720), (3488, 7240), (3620, 6976), (4360, 5792)]