25493120

素因数分解:

$2^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{653}}^1$

素因数の和:733

約数の個数: 64

約数和(自身を含む): 62038440

約数和(自身を除く): 36545320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 305, 320, 488, 610, 640, 653, 976, 1220, 1306, 1952, 2440, 2612, 3265, 3904, 4880, 5224, 6530, 7808, 9760, 10448, 13060, 19520, 20896, 26120, 39040, 39833, 41792, 52240, 79666, 83584, 104480, 159332, 199165, 208960, 318664, 398330, 417920, 637328, 796660, 1274656, 1593320, 2549312, 3186640, 5098624, 6373280, 12746560, 25493120]

約数ペア:

[(1, 25493120), (2, 12746560), (4, 6373280), (5, 5098624), (8, 3186640), (10, 2549312), (16, 1593320), (20, 1274656), (32, 796660), (40, 637328), (61, 417920), (64, 398330), (80, 318664), (122, 208960), (128, 199165), (160, 159332), (244, 104480), (305, 83584), (320, 79666), (488, 52240), (610, 41792), (640, 39833), (653, 39040), (976, 26120), (1220, 20896), (1306, 19520), (1952, 13060), (2440, 10448), (2612, 9760), (3265, 7808), (3904, 6530), (4880, 5224)]