25573120

素因数分解:

$2^8\times 5^1\times {\mathrm{19979}}^1$

素因数の和:20000

約数の個数: 36

約数和(自身を含む): 61258680

約数和(自身を除く): 35685560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 19979, 39958, 79916, 99895, 159832, 199790, 319664, 399580, 639328, 799160, 1278656, 1598320, 2557312, 3196640, 5114624, 6393280, 12786560, 25573120]

約数ペア:

[(1, 25573120), (2, 12786560), (4, 6393280), (5, 5114624), (8, 3196640), (10, 2557312), (16, 1598320), (20, 1278656), (32, 799160), (40, 639328), (64, 399580), (80, 319664), (128, 199790), (160, 159832), (256, 99895), (320, 79916), (640, 39958), (1280, 19979)]