13231315

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:187

約数の個数: 32

約数和(自身を含む): 17740800

約数和(自身を除く): 4509485

約数列:

[1, 5, 19, 41, 43, 79, 95, 205, 215, 395, 779, 817, 1501, 1763, 3239, 3397, 3895, 4085, 7505, 8815, 16195, 16985, 33497, 61541, 64543, 139277, 167485, 307705, 322715, 696385, 2646263, 13231315]

約数ペア:

[(1, 13231315), (5, 2646263), (19, 696385), (41, 322715), (43, 307705), (79, 167485), (95, 139277), (205, 64543), (215, 61541), (395, 33497), (779, 16985), (817, 16195), (1501, 8815), (1763, 7505), (3239, 4085), (3397, 3895)]