139219465

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{839}}^1$

素因数の和:1293

約数の個数: 32

約数和(自身を含む): 209018880

約数和(自身を除く): 69799415

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 431, 839, 2155, 3017, 4195, 4741, 5873, 9229, 15085, 23705, 29365, 33187, 46145, 64603, 165935, 323015, 361609, 1808045, 2531263, 3977699, 12656315, 19888495, 27843893, 139219465]

約数ペア:

[(1, 139219465), (5, 27843893), (7, 19888495), (11, 12656315), (35, 3977699), (55, 2531263), (77, 1808045), (385, 361609), (431, 323015), (839, 165935), (2155, 64603), (3017, 46145), (4195, 33187), (4741, 29365), (5873, 23705), (9229, 15085)]