19897610

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{281}}^1$

素因数の和:458

約数の個数: 32

約数和(自身を含む): 36811152

約数和(自身を除く): 16913542

約数列:

[1, 2, 5, 10, 73, 97, 146, 194, 281, 365, 485, 562, 730, 970, 1405, 2810, 7081, 14162, 20513, 27257, 35405, 41026, 54514, 70810, 102565, 136285, 205130, 272570, 1989761, 3979522, 9948805, 19897610]

約数ペア:

[(1, 19897610), (2, 9948805), (5, 3979522), (10, 1989761), (73, 272570), (97, 205130), (146, 136285), (194, 102565), (281, 70810), (365, 54514), (485, 41026), (562, 35405), (730, 27257), (970, 20513), (1405, 14162), (2810, 7081)]